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Submachine gun Carbine: REAPR: Ohio Ordnance United States Medium machine gun: 2023 SIG 510: Schweizerische Industrie Gesellschaft: 7.62×51mm NATO Switzerland Battle rifle: 1957 SIG MG 710-3: Schweizerische Industrie Gesellschaft: 7.62×51mm NATO Switzerland General-purpose machine gun: 1955 SRM Arms Model 1216 [1] SRM Arms: 12 gauge United States
In toggle-delayed blowback firearms, the rearward motion of the breechblock must overcome significant mechanical leverage. [48] [49] [50] The bolt is hinged in the middle, stationary at the rear end and nearly straight at rest. As the breech moves back under blowback power, the hinge joint moves upward. [51]
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.
Pages in category "Delayed blowback firearms" The following 16 pages are in this category, out of 16 total. This list may not reflect recent changes. 0–9.
A schematic of the Heckler & Koch roller-delayed blowback mechanism. The HK21 is a selective fire roller-delayed blowback-operated firearm with a semi-rigid locking mechanism designed to retard the rearward movement of the bolt.
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 Walther CCP is operated by a gas-delayed blowback system, using gas pressure from the ignited cartridge by directing it through a small port in the barrel in front of the chamber to slow down and delay the rearward motion of the slide. This design is nearly identical to the design of the Heckler & Koch P7. Walther calls this system Softcoil.
The Steyr GB is a semi-automatic, blowback-operated firearm. It features a unique gas-delayed blowback system based on the Barnitzke system, first used in the Volkssturmgewehr 1-5, [5] and subsequently in the Swiss Pistole 47 W+F (Waffenfabrik Bern) prototype pistol. [6]