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The system's heart is a common lower receiver housing an enlarged magazine well that will accommodate 5.56×45mm rounds using a STANAG magazine or larger caliber ammunition than NATO 5.56×45mm rounds using either a proprietary magazine or an SR-25 pattern magazine, [2] ambidextrous controls for the bolt release mechanism, magazine release, and ...
MARS weapons feature lower receivers updated to fully ambidextrous mirrored controls and can be set up to use gas-operated, rotating bolt (internal piston, not direct impingement) or short-stroke piston operating systems a with the help of basic tools. The MARS receiver can host and switch between barrels of varying length, and diameter ...
The addition of a proprietary hydraulic buffer system in the receiver back plate helps control recoil. [6] More than 50% of the APC's parts are interchangeable between the different platforms. [2] The APC's upper receiver is made from aerospace-grade alloy, and the lower receiver, pistol grips, magazine, and butt stock are made from polymer. [7]
The Kel-Tec RDB (Rifle, Downward-ejection, Bullpup) is a bullpup carbine offered in 5.56×45mm NATO semi-automatic rifle, manufactured by Kel-Tec Industries of Florida.It uses a rotary bolt with a spring loaded ejector and an extractor facing down, ejecting spent shell casings downward, allowing easy ambidextrous use.
The upper and lower receiver as well as the trigger guard are steel, and the pistol-grip and handguards are all made from polymer. The ambidextrous safety/fire selector switch, as well as the interchangeability with SIG 552/553 handguards are a feature found on the latest versions. Older versions used their own handguards.
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 ...
The lower receiver is forged from 7075 aluminum, [2] can mount any type of AR-15/M-16 pistol grip, and features an ambidextrous magazine latch just forward of the integral trigger guard. Also featured within the lower receiver is the rifle's trigger assembly.
This modular design allows for toolless caliber conversions by swapping out only the lower. The Vector's safety is ambidextrous (as well as the fire mode selector on the auto trigger pack) while the ejection port, charging handle, bolt release catch and magazine release are not, and are only available in a right-handed configuration.