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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 ...
The lower receiver is ambidextrous allowing easier use by left handed shooters. It has four selector positions: safe, single, two shot burst, and full automatic. [2] Chambered in 5.56 NATO it is rated effective out to 600m. The rifle weights 3.5 kg. [2] In testing the T112 reportedly had a bullet spread of 9.8 centimeters at 100 meters. [3]
To do this the upper receiver itself is made from polymer and steel reinforcements, while the lower receiver along with its magazine housing is made entirely from polymer and connected to the upper receiver by two captive take down cross-pins reducing the weight of the firearm significantly and allowing for easier access into the internal ...
The weapon has an integral suppressor mounted on the front of the upper receiver which wraps around the barrel. In order for the suppressor to be integrated, the AMB-17 employs a wider opening within its handguard as compared to the AM-17, along with the front of the upper receiver which also allows for an integrated handguard half-length MIL-STD/1913 Picatinny rail.
Side-folding the buttstock shortens the HK433 by 266 to 297 mm (10.5 to 11.7 in). The monolithic upper receiver is made of aluminium alloy, and the lower receiver is made of polymer. [8] The HK433 features a STANAG 4694 NATO Accessory Rail at 12 o'clock that is backwards-compatible with the STANAG 2324/MIL-STD-1913 Picatinny rail. At 6 o'clock ...
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 manual ambidextrous safety is integrated into the lower receiver. This chassis houses the upper receiver which consists of a bolt group and barrel, as well as the fire control group, folding butt stock and other furniture. The contact surface between the upper and lower receiver functions as an unconventional bedding surface.
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.