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The Heckler & Koch P9 semi-automatic pistol, CETME Ameli light machine gun, SIG MG 710-3, Heckler & Koch HK21 and Ohio Ordnance REAPR general-purpose machine guns also use it. Roller-delayed blowback arms are ammunition specific, since they lack an adjustable gas port or valve to adjust the arm to various propellant and projectile specific ...
Submachine gun: 1943 Garanin general-purpose machine guns: 7.62×54mmR Soviet Union: General-purpose machine gun: 1957 MAC-58: Manufacture d'armes de Saint-Étienne.50 BMG France Heavy machine gun: 1958 San Cristobal Carbine: Armería San Cristóbal Weapon Factory.30 Carbine Dominican Republic: Carbine: 1950 ST Kinetics CPW: ST Kinetics: 9× ...
The reliable functioning of roller-delayed blowback mechanisms is limited by specific ammunition and arm parameters like bullet weight, propellant charge, barrel length and amount of wear. For obtaining a proper and safe functioning parameters bandwidth Heckler & Koch offer a variety of locking pieces with different mass and shoulder angles.
The Calico Liberty is a roller-delayed blowback-operated semi-automatic rifle (Liberty II) or pistol (Liberty III) chambered for the 9 mm Parabellum. These firearms use an unusual 50- or 100-round helical magazine that allow for a large number of rounds in a relatively compact and convenient package.
Pages in category "Roller-delayed blowback firearms" The following 29 pages are in this category, out of 29 total. This list may not reflect recent changes. A.
The PSG1 is mechanically based on the Heckler & Koch G3 battle rifle that employs a roller-delayed blowback operating system. Its shot-to-shot variation is expected to be better than 1 minute of angle (MOA) with match ammunition. This level of accuracy is only average compared to most modern bolt action sniper rifles, but is still exceptional ...
The roller-delayed blowback firearm action was patented by Mauser’s Wilhelm Stähle and Ludwig Vorgrimler. Like the German FG 42 battle rifle /automatic rifle and Sturmgewehr 44 assault rifle the StG 45(M) was one of the first inline firearms incorporating a "straight-line" recoil configuration.
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.