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Palmetto State Armory also produces a line of 1911 handguns, [5] AR-10 rifles, 9mm AR-style pistols [6] and various AR style rifled-uppers ranging in caliber and cartridge dimensions from .22 Long Rifle to .308 Win/7.62x51 NATO. Their latest offering, is the PSA Dagger pistol chambered in 9mm, which is based on the 3rd generation Glock G19. [7]
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 ...
A major MRAD feature (and requirement of the military PSR solicitation) is a field-changeable barrel/caliber capability. Loosening two Torx screws in the receiver allows the removal of the barrel from the front of the receiver/handguard. With only a bolt face change, and in some cases a magazine change, caliber may be changed.
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]
The original AR15 and M16 designs lacked the "bolt forward assist" feature found on the later M16A1. [2] When hit, it pushes the bolt carrier forward, ensuring that the bolt is locked. In order to ensure that the extractor is clipped around the rim of the casing, the forward assist is usually struck rather than pushed.
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Any AR-15/AR-10 cartridge cases that are derived from the 7.62x51 can also be formed from these listed calibers. (7.62x51 & .308 are similar in external dimensions though the Brass has different internal capacity and Max PSI recommendations are different & Chambers are different.) AR-10 :The AR-10 is slightly larger and heavier than the AR-15 ...
Steyr AUGs with tan and black finish. Note the different type of Picatinny rail upper receivers. The AUG's receiver can be changed from the standard model with a carrying handle and built-in 1.5× optical sight [11] to the 'Special Receiver' which has a STANAG scope mount to allow for the use of a variety of scopes and sights. [11]