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The first project undertaken by the company was an injection molded AR-15 rifle lower receiver. The company then moved to AR-10 style rifle lower receivers, and finally pistol receivers. [14] The name of the company refers to the injection molding process combined with the common designation of unfinished receivers as "80% receivers". [14]
A disassembled Mauser action showing a partially disassembled receiver and bolt. In firearms terminology and law, the firearm frame or receiver is the part of a firearm which integrates other components by providing housing for internal action components such as the hammer, bolt or breechblock, firing pin and extractor, and has threaded interfaces for externally attaching ("receiving ...
The AR Lower V5 is a 3D printed lower receiver for the AR-15 rifle. [1] It was created in March 2013 Defense Distributed printed using the Stratasys Dimension SST 3-D printer [1] [2] using the fused deposition modeling (FDM) method. [2] The receiver was able to handle enough stress to fire more than 600 rounds. [1]
Under U.S. federal law, the creation of a firearm for non-commercial purposes (i.e., personal use) has, almost without exception, been unlicensed and legal.Since the passage of the Gun Control Act of 1968, however, anyone intending to manufacture firearms for sale or distribution is required to obtain a Federal Firearms License, and each firearm made is required to bear a unique serial number.
The dimensions of upper and lower receivers originally designed for the 5.56×45mm NATO cartridge impose an overall length limit and diameter limits when adapting modules for other cartridges included in this list of AR platform cartridges. [98] [87] The same magazine in the lower receiver group may hold differing numbers of different ...
From the P-15, it was integrated with the DefDist V5 lower receiver, resulting in the WarFairy Charon V0.1. Further advantage was taken of the nature of FDM polymer printing to make it possible for printers with small work envelopes to produce large items, i.e., the Charon was designed to be printed in sections and then assembled with solvent ...
The ambidextrous charging handle is easy to change sides on. It has a modular design, with an aluminium alloy upper receiver and polymer lower receiver/fire control group. The bolt is a multi-lug type riding in a bolt carrier, locking into a barrel extension. The system is balanced well, and designed to meet the most rigorous requirements.
The only two known versions of the Model 605 prototypes used a modified lower receiver assembly that appears to use an early M16 Model 603 type forging without the "fence" surrounding the magazine release button. The modified lower receiver incorporated a four-position selector switch (developed by Foster Sturtevant in December 1966) so that a ...