My initial research into the Picatinny rail revealed a world cloaked in myth and mystery; there are a lot of claims and counterclaims about who came up with what when. It was as if I was searching for the optic editor's Holy Grail. Then I found the Picatinny Arsenal website, called the number to a very nice public affairs office, and had the chance to talk with Gary Houtsma, a mechanical designer who spent the last 32 years of his career at Picatinny and actually was the lead project designer on the MIL-STD 1913 rail way back when.

Carbon fibre is a remarkable material that has revolutionised numerous industries. Also known as graphite fibre, this polymer is renowned for its light weight and strength, making it the perfect material for manufacturing parts for uses in space, motorsport, military and renewable industries (to name just a few).

It’s important to note that the manufacturing process can vary and often, as we will learn below, pure carbon fibre is not used; instead carbon fibre is used in the creation of a composite material.

picatinny rail width: 20mm

It’s worth noting that the specific properties of carbon fibre can vary depending on the manufacturing process, fibre orientation, resin system, and other factors used to produce the material. Different carbon fibre grades and configurations can be tailored to meet specific requirements for different applications.

Joseph Von Benedikt is with Rafe Nielsen of Browning to take a look at a new X-Bolt series rifle. Lighter and tougher and more precise than ever, it's the perfect back country hunting rifle.

"We started on the project in 1992," Houtsma said. "Most companies were using a rail-grabber of some sort, but they were tight on some rails and loose on others. No one ever had standardized dimensions. We brought in different weapons that had rails from the weapons bunkers at Picatinny and even went out and picked up rails from sporting-goods stores. We sat down, measured the distances between a randomly chosen datum on the four 45-degree-angled surfaces and a height from the datum to the top of the rail on the 20 or so different rails, and came up with an average set of numbers."

1913rail vs Picatinny

Pure carbon fibre is not often commonly used. Alone it is a brittle and delicate material, so using it in its pure form without any matrix would result in a structure that lacks the necessary strength and integrity for practical applications. Instead, it is commonly combined with a matrix material and acts as reinforcement in the production of composite materials.

All Picatinny rails are supposed to be numbered, allowing the user to remount the optic in exactly the same position every time. Failure to do so can result

Houtsma took the dimensions by committee over to the facility's production side and requested they design a dimensioning style so the rail could be easily produced and inspected. At a first glance, they commented that the rail was exactly like the one on a 105mm howitzer, just scaled way down. Under recoil, a howitzer's tube slides up and down a dovetail rail for repeatability. Turns out, it is important to put really big bullets in the same place miles away every time, too. The arsenal just coopted the howitzer rail production and inspection procedures for the new optics rail.

The standardization was a windfall for the firearms industry. Manufacturers of guns, rails, bases, and rings all were on the same page, saving a lot of work and machining time. Shooters could now buy one mounting system that worked on a myriad of guns. The 1913 rail brings peace and happiness to the lives of optics editors everywhere since they swap scopes and mounts as often as most folks change their underwear.

Shortly after the U.S. military developed the technology to fight at night, the quest for a standardized mounting system began. All sorts of night-vision and night-aiming devices were being developed for individual and crew-served weapons, and those systems needed to come off when the sun came out yet put rounds on target when they were reinstalled at night.

The standardization was a windfall for the firearms industry. Manufacturers of guns, rails, bases, and rings all were on the same page, saving a lot of work and machining time. Shooters could now buy one mounting system that worked on a myriad of guns. The 1913 rail brings peace and happiness to the lives of optics editors everywhere since they swap scopes and mounts as often as most folks change their underwear.

The rail has caught on, obviously, and is now used to hang bipods, lasers, and flashlights--the list is endless--on rifles, shotguns, pistols, and belt-fed machine guns. Regardless of the accessory, it sure is nice to know there is a system for optics that really works. Thanks to our friends at Picatinny Arsenal. Advertisement

"We started on the project in 1992," Houtsma said. "Most companies were using a rail-grabber of some sort, but they were tight on some rails and loose on others. No one ever had standardized dimensions. We brought in different weapons that had rails from the weapons bunkers at Picatinny and even went out and picked up rails from sporting-goods stores. We sat down, measured the distances between a randomly chosen datum on the four 45-degree-angled surfaces and a height from the datum to the top of the rail on the 20 or so different rails, and came up with an average set of numbers."

Houtsma said there were no standards issued for the rail as for maintaining zero; those standards are met by the mount and optic. High-quality mount manufacturers take return-to-zero very seriously and have developed some ingenious methods of making sure the scope and muzzle are pointed at the exact same spot every time.

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"We sent the finished product over to Rock Island Arsenal, where it was reviewed, and the rail was then sent out to all the different services for comment," Houtsma said. "The final design was then sent to our experts in the technical data section to determine if it should be a standard or a specification. They determined it was standard, not a specification, and did the final drawings. The rail was adopted and fielded in 1995."

This isn't your grandpa's muzzleloading system. Federal has created a safer, easier and more reliable way to shoot a muzzleloader.

mil-std-1913 pdf

"It is important that the mount is attached to the rail properly," said Cody Mitchell, a customer-service representative at LaRue, describing the lever-lock system. "You should start feeling contact when the lever is at a 45-degree angle to the rail. The lever should be tight to close and tough to open. That delivers the proper amount of force to hold the mount in position."

Picatinny Rail

Every company had its own way of attaching the aiming devices, and each required its own mounting platform. Frustrated with all the configurations and dimensional variations of the different dovetail-mounting systems, the U.S. Army tasked the arsenal with developing a standardized mounting system. Advertisement ×

It is important to note that these safety considerations apply mainly to the handling and processing of raw carbon fibre materials. Once carbon fibre is properly incorporated into a composite structure, these risks are significantly reduced, and the safety considerations shift towards the specific handling and use of the composite product.

Discover if composite materials and parts could help your business grow and develop. Speak to a composites expert today.

Coating materials for insulation will feature extremely high resistance to the flow of electrical current, and their valence electrons are bonded to their ...

For example, LaRue Tactical makes some really nice optics mounts and guarantees absolute return to zero. On the firm's lock-lever mounts, a cam attached to a locking lever allows the mount to exert pressure on the rail from three directions, pulling the mount down onto the rail. The locking lever is adjustable, which allows the shooter to correct for rail tolerance, stacking, or a manufacturer's sloppy machine work.

When incorporated into composites, carbon fibre enhances the strength, stiffness, and durability of the resulting material. It offers a high strength-to-weight ratio, creating composites that are lightweight yet strong, which makes them suitable for applications where weight reduction is crucial. Carbon fibre’s stiffness allows composites to maintain their shape and resist deformation under applied loads. Additionally, carbon fibre composites exhibit excellent fatigue resistance and corrosion resistance, making them suitable for demanding environments. Quality composite manufacturing utilises of cutting-edge machinery, advanced tooling, and precision equipment.

All Shooting Times subscribers now have digital access to their magazine content. This means you have the option to read your magazine on most popular phones and tablets.

No, there is no inherent difference between “carbon fibre” and “carbon fiber.” The difference lies in the spelling convention used in different regions. “Carbon fibre” is the British English spelling, while “carbon fiber” is the American English spelling.

For over 20 years we have been at the forefront of advanced composites specialising in the development of ultra-lightweight carbon fibre aerostructures for world-leading, record-breaking technologies.

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Weaver Rail

in a subtle shift in zero, which could be a huge issue if the optic is paired with a precision rifle. I have a favorite AR carbine that has a complete suite of optics for various applications. Each optic has a dedicated mount and a note card that helps me remember where it sits on the rifle's 1913 rail.

For example, LaRue Tactical makes some really nice optics mounts and guarantees absolute return to zero. On the firm's lock-lever mounts, a cam attached to a locking lever allows the mount to exert pressure on the rail from three directions, pulling the mount down onto the rail. The locking lever is adjustable, which allows the shooter to correct for rail tolerance, stacking, or a manufacturer's sloppy machine work.

Carbon fibre is composed of thin and strong crystalline filaments of carbon that are tightly bonded together, resulting in a high-strength structure. The strength of carbon fibre is further enhanced when these filaments are twisted together. The carbon atoms within the fibres are arranged in a crystal alignment, forming a lattice-like structure. These fibres are incredibly fine, typically measuring around 5-10 micrometres in diameter, which is smaller than a human hair. Carbon fibre is made of pure carbon with minimal impurities, so it is considered a high-purity material. This pristine composition contributes to the exceptional performance characteristics of carbon fibre, making it a sought-after material in various industries.

When the mount is sitting in the recoil lug/cross slots before the lever or locking nuts are tightened, there will often be a little play. This front-to-back wiggle is a result of the mount's recoil-lug dimensions. They are slightly undersized so that they go into and come out of the slots easily. The mount should be pushed forward so that the lug contacts the slot's front wall, especially if the mount is subject to heavy recoil or rough handling. Advertisement

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Yes, carbon fibre is generally stronger than steel when put with the correct matrix and comparing their strength-to-weight ratios. Carbon fibre has a significantly higher tensile strength (the resistance to being pulled apart) compared to steel, while also being much lighter in weight. This means that carbon fibre can withstand higher loads and stresses for its weight compared to steel. In fact, carbon fibre’s tensile strength can be up to 10 times higher than that of steel while being only about one-fourth the weight. This exceptional strength-to-weight ratio is one of the key reasons carbon fibre is highly valued in various industries, such as aerospace, automotive, and sporting goods, where lightweight materials with high strength are desired for improved performance and fuel efficiency.

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The rail concept was not developed by Picatinny, merely refined and standardized. The Weaver rail long predated the 1913 rail but has several key dimension differences, most notably the width of the recoil lug/cross slot. The Weaver slot measures 0.180 inch in width, and the 1913 has a 0.206-inch slot. There are no Weaver standards for slot spacing. Standardized spacing was required for the Picatinny rail since some military optics at that time had two recoil lugs. The 1913 slot-spacing center is standardized at 0.394 inch. Most Weaver rings will fit a Picatinny rail, whereas some but not all Picatinny rings will fit a Weaver rail. It mostly depends on the dimensions of the recoil lug.

2009122 — Dry can be lighter and stronger, but also more expensive. Here is a quote from Seibon's website on the differences.... ... But really, the ...

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Carbon fibre is an exceptional material that has revolutionised various industries due to its remarkable properties. Its high strength-to-weight ratio, stiffness, low density, excellent fatigue resistance, corrosion resistance, and electrical conductivity make it highly desirable for numerous applications. While the manufacturing process and use of carbon fibre in composites are crucial, the material’s potential is further enhanced by ongoing developments. Challenges such as high production costs and recycling difficulties are being addressed through research and advancements in technology. As carbon fibre continues to evolve, it holds great promise for expanding its utilisation in fields like renewable energy, electric vehicles, and space exploration, pushing the boundaries of its capabilities in the future.

By J. Guthrie The MIL-STD 1913 Picatinny rail is a dirt-simple system that has revolutionized the way we attach optics and accessories to firearms.The whole world has gone rail crazy, and with good reason. The MIL-STD 1913 rail developed at the Picatinny Arsenal in New Jersey is not overly complicated, outrageously expensive, or even hard to manufacture. It is a simple accessory-mounting platform that has revolutionized the way we attach all manner of things--optics in particular--to our firearms.My initial research into the Picatinny rail revealed a world cloaked in myth and mystery; there are a lot of claims and counterclaims about who came up with what when. It was as if I was searching for the optic editor's Holy Grail. Then I found the Picatinny Arsenal website, called the number to a very nice public affairs office, and had the chance to talk with Gary Houtsma, a mechanical designer who spent the last 32 years of his career at Picatinny and actually was the lead project designer on the MIL-STD 1913 rail way back when. Advertisement × Shortly after the U.S. military developed the technology to fight at night, the quest for a standardized mounting system began. All sorts of night-vision and night-aiming devices were being developed for individual and crew-served weapons, and those systems needed to come off when the sun came out yet put rounds on target when they were reinstalled at night. Every company had its own way of attaching the aiming devices, and each required its own mounting platform. Frustrated with all the configurations and dimensional variations of the different dovetail-mounting systems, the U.S. Army tasked the arsenal with developing a standardized mounting system. Advertisement × "We started on the project in 1992," Houtsma said. "Most companies were using a rail-grabber of some sort, but they were tight on some rails and loose on others. No one ever had standardized dimensions. We brought in different weapons that had rails from the weapons bunkers at Picatinny and even went out and picked up rails from sporting-goods stores. We sat down, measured the distances between a randomly chosen datum on the four 45-degree-angled surfaces and a height from the datum to the top of the rail on the 20 or so different rails, and came up with an average set of numbers."Houtsma took the dimensions by committee over to the facility's production side and requested they design a dimensioning style so the rail could be easily produced and inspected. At a first glance, they commented that the rail was exactly like the one on a 105mm howitzer, just scaled way down. Under recoil, a howitzer's tube slides up and down a dovetail rail for repeatability. Turns out, it is important to put really big bullets in the same place miles away every time, too. The arsenal just coopted the howitzer rail production and inspection procedures for the new optics rail. Recommended Advertisement "We sent the finished product over to Rock Island Arsenal, where it was reviewed, and the rail was then sent out to all the different services for comment," Houtsma said. "The final design was then sent to our experts in the technical data section to determine if it should be a standard or a specification. They determined it was standard, not a specification, and did the final drawings. The rail was adopted and fielded in 1995."The rail concept was not developed by Picatinny, merely refined and standardized. The Weaver rail long predated the 1913 rail but has several key dimension differences, most notably the width of the recoil lug/cross slot. The Weaver slot measures 0.180 inch in width, and the 1913 has a 0.206-inch slot. There are no Weaver standards for slot spacing. Standardized spacing was required for the Picatinny rail since some military optics at that time had two recoil lugs. The 1913 slot-spacing center is standardized at 0.394 inch. Most Weaver rings will fit a Picatinny rail, whereas some but not all Picatinny rings will fit a Weaver rail. It mostly depends on the dimensions of the recoil lug. Picatinny rails are usually numbered so that optics can be attached at the same point after removal. Failure to use the same slot can result in point of impact shifts.The standardization was a windfall for the firearms industry. Manufacturers of guns, rails, bases, and rings all were on the same page, saving a lot of work and machining time. Shooters could now buy one mounting system that worked on a myriad of guns. The 1913 rail brings peace and happiness to the lives of optics editors everywhere since they swap scopes and mounts as often as most folks change their underwear.Houtsma said there were no standards issued for the rail as for maintaining zero; those standards are met by the mount and optic. High-quality mount manufacturers take return-to-zero very seriously and have developed some ingenious methods of making sure the scope and muzzle are pointed at the exact same spot every time. Advertisement For example, LaRue Tactical makes some really nice optics mounts and guarantees absolute return to zero. On the firm's lock-lever mounts, a cam attached to a locking lever allows the mount to exert pressure on the rail from three directions, pulling the mount down onto the rail. The locking lever is adjustable, which allows the shooter to correct for rail tolerance, stacking, or a manufacturer's sloppy machine work."It is important that the mount is attached to the rail properly," said Cody Mitchell, a customer-service representative at LaRue, describing the lever-lock system. "You should start feeling contact when the lever is at a 45-degree angle to the rail. The lever should be tight to close and tough to open. That delivers the proper amount of force to hold the mount in position."When the mount is sitting in the recoil lug/cross slots before the lever or locking nuts are tightened, there will often be a little play. This front-to-back wiggle is a result of the mount's recoil-lug dimensions. They are slightly undersized so that they go into and come out of the slots easily. The mount should be pushed forward so that the lug contacts the slot's front wall, especially if the mount is subject to heavy recoil or rough handling. Advertisement All Picatinny rails are supposed to be numbered, allowing the user to remount the optic in exactly the same position every time. Failure to do so can resultin a subtle shift in zero, which could be a huge issue if the optic is paired with a precision rifle. I have a favorite AR carbine that has a complete suite of optics for various applications. Each optic has a dedicated mount and a note card that helps me remember where it sits on the rifle's 1913 rail.The rail has caught on, obviously, and is now used to hang bipods, lasers, and flashlights--the list is endless--on rifles, shotguns, pistols, and belt-fed machine guns. Regardless of the accessory, it sure is nice to know there is a system for optics that really works. Thanks to our friends at Picatinny Arsenal. Advertisement Video That May Interest You × GET THE NEWSLETTER Join the List and Never Miss a Thing. Email Address Sign Me Up

The whole world has gone rail crazy, and with good reason. The MIL-STD 1913 rail developed at the Picatinny Arsenal in New Jersey is not overly complicated, outrageously expensive, or even hard to manufacture. It is a simple accessory-mounting platform that has revolutionized the way we attach all manner of things--optics in particular--to our firearms.

mil-std1913rail dimensions

Shortly after the U.S. military developed the technology to fight at night, the quest for a standardized mounting system began. All sorts of night-vision and night-aiming devices were being developed for individual and crew-served weapons, and those systems needed to come off when the sun came out yet put rounds on target when they were reinstalled at night.

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These ongoing developments hold the promise of expanding the utilisation of carbon fibre and pushing the boundaries of its capabilities in the future. Read more on how Piran Composites are researching and developing to create the future of carbon fibre.

Houtsma took the dimensions by committee over to the facility's production side and requested they design a dimensioning style so the rail could be easily produced and inspected. At a first glance, they commented that the rail was exactly like the one on a 105mm howitzer, just scaled way down. Under recoil, a howitzer's tube slides up and down a dovetail rail for repeatability. Turns out, it is important to put really big bullets in the same place miles away every time, too. The arsenal just coopted the howitzer rail production and inspection procedures for the new optics rail.

Please take a few minutes to complete this anonymous survey by Southwick Associates. Your input will help improve products and services for firearm owners. All responses are confidential.

Carbon fibre, as a composite material, has a huge range of uses in a breadth of industries. Just a few examples include:

Picatinny Rail canada

The MIL-STD 1913 Picatinny rail is a dirt-simple system that has revolutionized the way we attach optics and accessories to firearms.The whole world has gone rail crazy, and with good reason. The MIL-STD 1913 rail developed at the Picatinny Arsenal in New Jersey is not overly complicated, outrageously expensive, or even hard to manufacture. It is a simple accessory-mounting platform that has revolutionized the way we attach all manner of things--optics in particular--to our firearms.My initial research into the Picatinny rail revealed a world cloaked in myth and mystery; there are a lot of claims and counterclaims about who came up with what when. It was as if I was searching for the optic editor's Holy Grail. Then I found the Picatinny Arsenal website, called the number to a very nice public affairs office, and had the chance to talk with Gary Houtsma, a mechanical designer who spent the last 32 years of his career at Picatinny and actually was the lead project designer on the MIL-STD 1913 rail way back when. Advertisement × Shortly after the U.S. military developed the technology to fight at night, the quest for a standardized mounting system began. All sorts of night-vision and night-aiming devices were being developed for individual and crew-served weapons, and those systems needed to come off when the sun came out yet put rounds on target when they were reinstalled at night. Every company had its own way of attaching the aiming devices, and each required its own mounting platform. Frustrated with all the configurations and dimensional variations of the different dovetail-mounting systems, the U.S. Army tasked the arsenal with developing a standardized mounting system. Advertisement × "We started on the project in 1992," Houtsma said. "Most companies were using a rail-grabber of some sort, but they were tight on some rails and loose on others. No one ever had standardized dimensions. We brought in different weapons that had rails from the weapons bunkers at Picatinny and even went out and picked up rails from sporting-goods stores. We sat down, measured the distances between a randomly chosen datum on the four 45-degree-angled surfaces and a height from the datum to the top of the rail on the 20 or so different rails, and came up with an average set of numbers."Houtsma took the dimensions by committee over to the facility's production side and requested they design a dimensioning style so the rail could be easily produced and inspected. At a first glance, they commented that the rail was exactly like the one on a 105mm howitzer, just scaled way down. Under recoil, a howitzer's tube slides up and down a dovetail rail for repeatability. Turns out, it is important to put really big bullets in the same place miles away every time, too. The arsenal just coopted the howitzer rail production and inspection procedures for the new optics rail. Recommended Advertisement "We sent the finished product over to Rock Island Arsenal, where it was reviewed, and the rail was then sent out to all the different services for comment," Houtsma said. "The final design was then sent to our experts in the technical data section to determine if it should be a standard or a specification. They determined it was standard, not a specification, and did the final drawings. The rail was adopted and fielded in 1995."The rail concept was not developed by Picatinny, merely refined and standardized. The Weaver rail long predated the 1913 rail but has several key dimension differences, most notably the width of the recoil lug/cross slot. The Weaver slot measures 0.180 inch in width, and the 1913 has a 0.206-inch slot. There are no Weaver standards for slot spacing. Standardized spacing was required for the Picatinny rail since some military optics at that time had two recoil lugs. The 1913 slot-spacing center is standardized at 0.394 inch. Most Weaver rings will fit a Picatinny rail, whereas some but not all Picatinny rings will fit a Weaver rail. It mostly depends on the dimensions of the recoil lug. Picatinny rails are usually numbered so that optics can be attached at the same point after removal. Failure to use the same slot can result in point of impact shifts.The standardization was a windfall for the firearms industry. Manufacturers of guns, rails, bases, and rings all were on the same page, saving a lot of work and machining time. Shooters could now buy one mounting system that worked on a myriad of guns. The 1913 rail brings peace and happiness to the lives of optics editors everywhere since they swap scopes and mounts as often as most folks change their underwear.Houtsma said there were no standards issued for the rail as for maintaining zero; those standards are met by the mount and optic. High-quality mount manufacturers take return-to-zero very seriously and have developed some ingenious methods of making sure the scope and muzzle are pointed at the exact same spot every time. Advertisement For example, LaRue Tactical makes some really nice optics mounts and guarantees absolute return to zero. On the firm's lock-lever mounts, a cam attached to a locking lever allows the mount to exert pressure on the rail from three directions, pulling the mount down onto the rail. The locking lever is adjustable, which allows the shooter to correct for rail tolerance, stacking, or a manufacturer's sloppy machine work."It is important that the mount is attached to the rail properly," said Cody Mitchell, a customer-service representative at LaRue, describing the lever-lock system. "You should start feeling contact when the lever is at a 45-degree angle to the rail. The lever should be tight to close and tough to open. That delivers the proper amount of force to hold the mount in position."When the mount is sitting in the recoil lug/cross slots before the lever or locking nuts are tightened, there will often be a little play. This front-to-back wiggle is a result of the mount's recoil-lug dimensions. They are slightly undersized so that they go into and come out of the slots easily. The mount should be pushed forward so that the lug contacts the slot's front wall, especially if the mount is subject to heavy recoil or rough handling. Advertisement All Picatinny rails are supposed to be numbered, allowing the user to remount the optic in exactly the same position every time. Failure to do so can resultin a subtle shift in zero, which could be a huge issue if the optic is paired with a precision rifle. I have a favorite AR carbine that has a complete suite of optics for various applications. Each optic has a dedicated mount and a note card that helps me remember where it sits on the rifle's 1913 rail.The rail has caught on, obviously, and is now used to hang bipods, lasers, and flashlights--the list is endless--on rifles, shotguns, pistols, and belt-fed machine guns. Regardless of the accessory, it sure is nice to know there is a system for optics that really works. Thanks to our friends at Picatinny Arsenal. Advertisement Video That May Interest You × GET THE NEWSLETTER Join the List and Never Miss a Thing. Email Address Sign Me Up

The rail concept was not developed by Picatinny, merely refined and standardized. The Weaver rail long predated the 1913 rail but has several key dimension differences, most notably the width of the recoil lug/cross slot. The Weaver slot measures 0.180 inch in width, and the 1913 has a 0.206-inch slot. There are no Weaver standards for slot spacing. Standardized spacing was required for the Picatinny rail since some military optics at that time had two recoil lugs. The 1913 slot-spacing center is standardized at 0.394 inch. Most Weaver rings will fit a Picatinny rail, whereas some but not all Picatinny rings will fit a Weaver rail. It mostly depends on the dimensions of the recoil lug.

The whole world has gone rail crazy, and with good reason. The MIL-STD 1913 rail developed at the Picatinny Arsenal in New Jersey is not overly complicated, outrageously expensive, or even hard to manufacture. It is a simple accessory-mounting platform that has revolutionized the way we attach all manner of things--optics in particular--to our firearms.

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Houtsma said there were no standards issued for the rail as for maintaining zero; those standards are met by the mount and optic. High-quality mount manufacturers take return-to-zero very seriously and have developed some ingenious methods of making sure the scope and muzzle are pointed at the exact same spot every time.

"It is important that the mount is attached to the rail properly," said Cody Mitchell, a customer-service representative at LaRue, describing the lever-lock system. "You should start feeling contact when the lever is at a 45-degree angle to the rail. The lever should be tight to close and tough to open. That delivers the proper amount of force to hold the mount in position."

Carbon fibre is a strong and lightweight material made up of thin strands of carbon atoms. Often, these strands, called fibres, are combined with a polymer resin to create a composite structure.

The Mossberg 500 Pump Action Shotgun is one of the most popular home defense shotguns on the market. Joseph Von Benedikt shows his custom 500 and how well it shoots. Make sure to watch till the end. Who knew wild turkey's were so stupid!?

My initial research into the Picatinny rail revealed a world cloaked in myth and mystery; there are a lot of claims and counterclaims about who came up with what when. It was as if I was searching for the optic editor's Holy Grail. Then I found the Picatinny Arsenal website, called the number to a very nice public affairs office, and had the chance to talk with Gary Houtsma, a mechanical designer who spent the last 32 years of his career at Picatinny and actually was the lead project designer on the MIL-STD 1913 rail way back when.

Joseph Von Benedikt visits with Aaron Oelger from Hodgdon about the unprecedented demand on the shooting supply industry.

The rail has caught on, obviously, and is now used to hang bipods, lasers, and flashlights--the list is endless--on rifles, shotguns, pistols, and belt-fed machine guns. Regardless of the accessory, it sure is nice to know there is a system for optics that really works. Thanks to our friends at Picatinny Arsenal.

CPT code 59025 can be conducted as many times as medically necessary. For patients with conditions complicating pregnancy, 59025 is typically performed weekly ...

Every company had its own way of attaching the aiming devices, and each required its own mounting platform. Frustrated with all the configurations and dimensional variations of the different dovetail-mounting systems, the U.S. Army tasked the arsenal with developing a standardized mounting system.

All Picatinny rails are supposed to be numbered, allowing the user to remount the optic in exactly the same position every time. Failure to do so can resultin a subtle shift in zero, which could be a huge issue if the optic is paired with a precision rifle. I have a favorite AR carbine that has a complete suite of optics for various applications. Each optic has a dedicated mount and a note card that helps me remember where it sits on the rifle's 1913 rail.

Carbon fibre is generally considered an expensive material due to its complex production process and the cost of precursor materials. However, its durability, lightweight nature, and long-term performance can make it cost-effective in the long run, as it reduces fuel consumption, extends component lifespan, and offers potential maintenance and operational cost savings.

Picatinny rail size mm

When the mount is sitting in the recoil lug/cross slots before the lever or locking nuts are tightened, there will often be a little play. This front-to-back wiggle is a result of the mount's recoil-lug dimensions. They are slightly undersized so that they go into and come out of the slots easily. The mount should be pushed forward so that the lug contacts the slot's front wall, especially if the mount is subject to heavy recoil or rough handling.

"We sent the finished product over to Rock Island Arsenal, where it was reviewed, and the rail was then sent out to all the different services for comment," Houtsma said. "The final design was then sent to our experts in the technical data section to determine if it should be a standard or a specification. They determined it was standard, not a specification, and did the final drawings. The rail was adopted and fielded in 1995."

Carbon fibre is manufactured through a multi-step process that converts a precursor material into the final product. A general overview of the carbon fibre manufacturing process is:

Yes, carbon fibre can be recycled, but the process is currently challenging and not as widespread as traditional recycling methods for materials like plastics or metals. Carbon fibre composites are made up of a combination of carbon fibres and a resin matrix, which makes the recycling process more complex.

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Carbon fibre possesses several notable properties that make it highly desirable for various applications. Here are some key properties of carbon fibre:

Sep 26, 2015 — It really depends on what you're expecting to do in the shop. Both at work and at home I find that the lathe gets used regularly while the mill is used only ...