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The MP5SD ("SD" meaning Schalldämpfer, German for "sound suppressor") is a variant of the MP5 with an integral suppressor, introduced in 1974. [34] The integral suppressor, built around its 5.7-inch barrel, uses a unique two-stage design that allows it to operate silently in most environments, including when wet, while still remaining reliable ...
HK VP70M, HK VP70Z HK P9: HK P9S, HK P9K: HK P7: HK PSP, HK P7M8, HK P7M13, HK P7M10, HK P7K3, HK P7M7, HK P7PT8: HK USP (Universal Self-loading Pistol) HK USP Standard, HK USP Compact, HK USP Tactical, HK USP Expert, HK USP Elite, HK USP Match, HK P8: HK Mark 23 (also known as Mark 23 Mod 0 or HK SOCOM) HK P2000: HK P2000SK: HK P30: P30L ...
The M4 carbine barrel is 368 mm (14.5 in) and the XM8 barrel is 317 mm (12.5 in) but the rifles have the same overall length. Although a shorter barrel generally results in lower muzzle velocity, Polygonal rifling partially compensates for the loss of velocity from a shorter barrel. An electronic round counter was proposed for the XM8.
Developed by Alliant Techsystems, with Heckler & Koch as a major subcontractor, the most commonly seen version of the XM29 consisted of a semi-automatic 20×28mm smart grenade launcher, an underslung "KE" assault carbine (derived from the HK G36 then in its late developmental stage) firing a standard 5.56×45mm NATO round, and a top-mounted computer-assisted sighting system with integrated ...
The HK P9 is a semi-automatic pistol from Heckler & Koch in 9×19mm Parabellum, .45 ACP, and 7.65×21mm Parabellum and the first to use a variation of H&K's roller delayed blowback system in a pistol format and polygonal rifling [1] now common in H&K designs.
The Type 64 was designed from the beginning to be a suppressed weapon, unlike many other suppressed firearms that are simply modified versions of standard production guns. An amalgam of many designs, the gun features the bolt of a PPS submachine gun and the trigger group of a ZB vz. 26, both of which are grafted onto the receiver of an AKS-47. [4]
The weapon's mechanism was partially based on the Type 64. [4] Parts made for the regular and suppressed version are interchangeable, except for the barrels. [8] The safety and fire mode selector lever is located at the right side of the trigger unit, above the trigger guard.
The MG4 has a hammer-forged quick-change barrel that can be safely exchanged when hot without the need for protective gloves; the carrying handle serves as the barrel change grip. The barrel assembly weighs 1.80 kg (3.97 lb). To reduce the overall length of the weapon for transport, the butt stock can be folded to the left side of the receiver.