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Thus Barrett designed the 240LW and 240LWS, keeping the standard M240 technical data package, while more efficiently manufacturing the receiver. [26] In 2020, Geissele Automatics announced the acquisition of the technical data packages and intellectual property for the 240LW and 240LWS. [27]
The Close Quarter Battle Receiver (CQBR) [5] is a replacement upper receiver for the M4A1 carbine developed by the US Navy.. The CQBR features a 10.3 in (262 mm) length barrel (similar to the Colt Commando short-barreled M16 variants of the past) which makes the weapon significantly more compact, thus making it easier to use in, and around, vehicles and in tight, confined spaces.
The Monolithic Rail Platform (MRP) [3] was created by the company, a one-piece, Picatinny-topped AR-15-pattern upper receiver made from a forged aluminum block. [4] The MRP upper receiver has a quick-change barrel system. [5] Its top rail position matches M4 and E3-type weapons for optical and sight compatibility. [6]
A Special Purpose Receiver built by NWSC Crane Division, mounted on an M16A1 lower receiver The SOPMOD program also introduced the Special Purpose Receiver (SPR), a 16-or-18 in (406-or-457 mm) barreled upper receiver that would be mated to an M4A1 lower receiver to allow the weapon to serve as a designated marksman rifle (DMR).
A disassembled Mauser action showing a partially disassembled receiver and bolt. In firearms terminology and at 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 ...
Diemaco offered a training version of the C7 named the C10, which would be a semi-automatic variant chambered in .22 Long Rifle ammunition. The polymer stock and lower receiver would be one piece. [citation needed] The C10 was proposed but never implemented, and no .22 caliber sub-cal system was used in the CAF after the withdrawal of the C1A1 ...
The lower receiver will also accept older mil-spec M16 or M16 upper receivers with an adapter. Receivers will be available that accept 5.56×45mm NATO rounds, 6.8×43mm Remington SPC rounds, 7.62×39mm rounds, and 7.62×51mm NATO rounds. Each upper receiver has its own rail system, which allows scopes, or other optics to be pre-sighted for each ...
The Mk47 Mutant has an AR-10-sized bolt carrier, [8] which was enlarged, with a CMMG RKM KeyMod handguard [3] [5] and an upper/lower receiver manufactured from 7075-T6 billet aluminum. [2] The rifle has an AR-15-based pistol grip, safety selector, trigger group and a buffer tube. [2] It was influenced by the CMMG Mk3 assault rifles. [9]