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The resulting COAL of 2.300" is only 1.02 mm longer than the maximum COAL for chambering a cartridge in the smaller AR-15; however, the 45 Raptor chamber pressure is allowed to be as high as 62,000 PSI. This means that the stronger AR-10 receiver and bolt carrier group is needed for shooting this cartridge.
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]
In December 2003, after outperforming 10 other manufacturers in rifle abuse tests, Rock River Arms was awarded a contract with the Drug Enforcement Administration for a minimum of 5,000 LAR-15 rifles to be purchased over five years. [7]
While AR-15–style rifles are banned in New York City, the FightLite SCR has been explicitly allowed, even though it accepts standard AR-15 upper receivers. [67] [68] The SCR lower receiver differs from the standard AR-15 lower receiver in that it uses a Monte Carlo stock instead of a pistol grip, which may allow it to be legally possessed in ...
The selector lever is located on the left side of the receiver and has 4 settings: "S" - weapon safe, "1" - single fire mode, "3" - 3-round burst, "A" - continuous (automatic) fire. The FNC's barrel features a flash suppressor that is also used to launch NATO standard 22mm rifle grenades (only the standard rifle model has this capability). The ...
It is an offspring of the Charon open source project, [6] which was a 3D-printable AR-15 lower receiver project that was partially inspired by the P90. It began as a design exercise by a DEFCAD user to explore FDM additive manufacturing technology as a means of integrating the P90's ergonomics into a stock for the AR-15 , resulting in the ...
ArmaLite AR-15 with the charging handle located on top of the upper receiver, protected within the carrying handle and a 25-round magazine. 1973 Colt AR-15 SP1 rifle with "slab side" lower receiver (lacking raised boss around magazine release button) and original Colt 20-round magazine.
The AR-57 PDW upper is a new design on AR-15/M16 rifles, blending the AR-15/M16 lower with a lightweight, monolithic upper receiver system chambered in 5.7×28mm. This model is also sold as a complete rifle, supplied with two 50-round P90 magazines. [1]