Glock Assault Rifle Patent - "Why doesn't GLOCK make guns?" And we've heard rumors from time to time and even some hoaxes about GLOCK assault rifles hitting the market. But last month GLOCK published some interesting new patents. It appears that GLOCK engineers have been hard at work on rifle caliber design for at least a few years.
Published just last month, the group of patents point to one or more rifle/carbine designs developed by GLOCK engineers. In this article, we'll explore the patent and examine what we know about the GLOCK's development, and explore the history of some of its predecessors that used the most interesting feature of the new design—its annular gas system.
Glock Assault Rifle Patent
The principle design shown in the patent features a rotating bolt and bolt carrier based on Eugene Stoner's influential AR-18 design. The weapon is chambered in common rifle calibers, and some patent drawings indicate a standard 5.56x45mm chamber. The design appears to have been primarily the work of accomplished small arms designer Elmar Bilgeri, perhaps best known for his work on the Steyr Scout Rifle.
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Interestingly, the design appears to have an annular mid-length gas piston system while another patent points to the possibility of switching from a barrel. The patent doesn't go into much detail on what the rifle looks like, instead it has general layout diagrams showing a conventional upper, lower, barrel assembly, forend and bolt carrier group design.
The most interesting aspects of the rifle's design are its annular gas piston and charging handle. The rifle has an amphibious charging handle on the inside of the forend, above the barrel, which acts on the bolt carrier group, but is not interactive – not unlike the classic HK design. The charging handle patent is assigned to Mario Castrun.
The rifle has a medium-length gas system with an annular, annular, gas piston head that surrounds the barrel and operates on a pair of arms placed on either side of the barrel or a push rod acting on a bolt carrier. The design of the gas system should have a stroke length between 20 and 30 mm. Annular gas pistons have radial gas ports that lead back to the receiver.
Below is a diagram showing how the annular gas piston system and its push rods interact with the bolt carrier.
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The symmetrical configuration, especially the gas escape hole 20 and the push rods 19, in cooperation with the slim design, especially the design of the push rods 19, ensures a significant reduction in the bending moment when acting on the weapon. blew up
The theory is that the distribution of these forces and movement in the working parts of the gun will provide a more stable weapon.
You may be wondering what exactly is an annular piston. Simply put it's a piston that's placed above or below the barrel like traditional systems. The piston moves longitudinally along the barrel when propellant gases on it leave the barrel through the weapon's gas port. While the system is rarely used, the concept has a long history.
Previous rifle designs using this system include the Walther A115, developed in the mid-1930s. Using some advanced manufacturing techniques and design concepts for the time, the A115 had an annular gas piston assembly around the barrel with a small gas chamber at the front end.
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A few years later on the other side of the Atlantic, Jonathan "Ed" Browning developed a new rifle for Winchester - to be known as the G30 - which used an annular gas system. During World War II, Walther returned to the annular gas system when developing the Maschinenkarabiner 42(W). The MKb-42(W) competed with Haenel's less complex design which eventually became the StG-44. The MKb-42(W)'s annular gas piston operates on a rotating bolt.
However, the most successful rifle to feature an annular gas piston is the Czech vz.52, which has a mid-barrel gas port that enters an annular piston head that then acts on an operation sleeve that incorporates some push rods. A gun bolt. The vz.52 is probably the most combat-proven design to use the system.
From the patent we can get an idea of some other features that will appear on future Glock guns. Unlike the AR-18, the Glock patent does not feature a buffer tube, as is often seen in the AR-15 platform. However, unlike the AR-18, the bolt carrier group appears to use a single recoil spring instead of two. Like HK's roller-delayed blowback designs, the bolt carrier has a forward extension over the bolt head, which is accomplished by a charging handle located on the barrel. The bolt has a standard 7-lock configuration, but the ejector appears to be a larger component that runs the entire length of the bolt. While the bolt carrier may seem like a complex part of the machine, in general, the bolt carrier group appears to have relatively few parts.
We couldn't find any patents on fire control systems, and the available patent drawings show a very general lower outline. However, there is a patent for the magazine release, designed by Kastrun, that shows an ambivalence. Perhaps the most pressing question, however, is does it take Glock mags? If Glock starts making their own STANAG pattern 5.56x45mm rifle magazines, the answer is yes.
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This article is a brief breakdown of the main design features shown in the various patents. See the patent here:
Don't get too excited just yet, just because a patent proves Glock is working on a gun design doesn't mean we'll ever see it. Let us know your thoughts in the comments below, how excited are you to see the Glock rifle?
Matt is a British historian specializing in small arms development and military history. He has written several books and for various publications in both the US and the UK. He also runs Historical Firearms, a blog that explores the history, development and use of firearms. Matt is the co-founder of The Armorer's Bench, a video series on historically significant small arms.
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