# List of delayed-blowback firearms

Below is a list of delayed-blowback firearms.

## Lever delayed blowback

| Name | Manufacturer | Cartridge | Country | Type | Year |
| AA-52 machine gun | Manufacture d'armes de Saint-Étienne | 7.62×51mm NATO 7.5×54mm French | France | General-purpose machine gun | 1952 |
| Danuvia 43M | Danuvia Gepgyar | 9×25mm Mauser | Hungary | Submachine gun | 1939 |
| FAMAS | Nexter | 5.56×45mm NATO | France | Bullpup assault rifle | 1978 |
| FNAB-43 | Fabbrica Nazionale d'Armi di Brescia | 9×19mm Parabellum | Italian Social Republic | 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 | 9×19mm Parabellum FN 5.7×28mm HK 4.6×30mm | Singapore | Submachine gun Personal defense weapon | 2008 |
| TKB-517 | Tula State Plant | 7.62×39mm | Soviet Union | Assault rifle | 1952 |
| VAHAN | | 7.62×39mm | Armenia | Assault rifle | 1952 |

## Roller delayed blowback

| Name | Manufacturer | Cartridge | Country | Type | Year |
| BW20 | Pakistan Ordnance Factories | 7.62x51mm NATO | Pakistan | Assault rifle | 2021 |
| BW21 | Pakistan Ordnance Factories | 7.62x51mm NATO | Pakistan | Assault rifle | 2021 |
| Calico M960 | Calico Light Weapons Systems | 9×19mm Parabellum | United States | Submachine gun Carbine | 1990 |
| CEAM Modèle 1950 | Centre d'Etudes et d'Armement de Mulhouse | .30 Carbine 7.92×33mm Kurz | France | Assault rifle | 1949 |
| CETME Ameli | CETME | 5.56×45mm NATO | Spain | Light machine gun | 1974 |
| CETME Model L | CETME | 5.56×45mm NATO | Spain | Assault rifle | 1981 |
| CETME rifle | CETME | 7.62×51mm CETME | Spain | Battle rifle | 1957 |
| CW56 | Pakistan Ordnance Factories | 5.56×45mm NATO | Pakistan | Assault rifle | 2022 |
| DUG | Rexim S.A. | 7.62×51mm NATO | Switzerland | Battle rifle | 1956 |
| Heckler & Koch G3 | Heckler & Koch | 7.62×51mm NATO | West Germany | Battle rifle | 1959 |
| Heckler & Koch G41 | Heckler & Koch | 5.56×45mm NATO | West Germany | Assault rifle | 1984 |
| Heckler & Koch HK21 | Heckler & Koch | 7.62×51mm NATO | West Germany | General-purpose machine gun | 1961 |
| Heckler & Koch HK33 | Heckler & Koch | 5.56×45mm NATO | West Germany | Assault rifle | 1968 |
| Heckler & Koch MP5 | Heckler & Koch | 9×19mm Parabellum | Germany | Submachine gun | 1964 |
| Heckler & Koch P9 | Heckler & Koch | 9×19mm Parabellum .45 ACP 7.65×21mm Parabellum | West Germany | Semi-automatic pistol | 1965 |
| Heckler & Koch PSG1 | Heckler & Koch | 7.62×51mm NATO | West Germany | Semi-automatic sniper rifle | 1972 |
| Korth PRS | Korth | .45 ACP | Germany | Semi-automatic Pistol | 2010s |
| MDP-9 | Angstadt Arms | 9×19mm Parabellum | United States | 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 | SRM Arms | 12 gauge | United States | Semi-automatic shotgun | 2011 |
| Sturmgewehr 45 | Mauser | 7.92×33mm Kurz | Germany | Assault rifle | 1944 |
| Grand Power Stribog SP9A3 | | | | | |

## Gas delayed blowback

| Name | Manufacturer | Cartridge | Country | Type | Year |
| Arsenal P-M02 | Arsenal Firearms | 9×19mm Parabellum | Bulgaria | Semi-automatic pistol | 1999 |
| BFD 1911 | Better Firearms Designs | .45 ACP | United States | Semi-automatic pistol | |
| Grossfuss Sturmgewehr | Grossfuss | 7.92×33mm Kurz | Germany | Assault rifle | 1945 |
| Heckler & Koch P7 | Heckler & Koch | 9×19mm Parabellum .22 Long Rifle .32 ACP .380 ACP .40 S&W .45 ACP | West Germany | Semi-automatic pistol | 1976 |
| Krag–Jørgensen pistol | | 9×19mm Parabellum | Norway | Semi-automatic pistol | |
| PCC | Sureshot Armament Group | .45 ACP | United States | Semi-automatic pistol | |
| Steyr GB | Steyr Mannlicher | 9×19mm Parabellum | Austria | Semi-automatic pistol | 1968 |
| Volkssturmgewehr | Gustloff-Werke | 7.92×33mm Kurz | Germany | Semi-automatic rifle | 1944 |
| W+F P47 | Waffenfabrik Bern | 9×19mm Parabellum | Switzerland | Semi-automatic pistol | 1947 |
| Walther CCP | Walther | 9×19mm Parabellum | Germany | Semi-automatic pistol | 2014 |
| Kevin ZP98 | Zbrojovka Brno | .380 ACP | Czech Republic | Semi-automatic pistol | 2000 |
| Laugo Alien | Ján Lučanský | 9×19mm Parabellum | Czech Republic | Semi-automatic pistol | 2019 |

## Flywheel delayed blowback

| Name | Manufacturer | Image | Cartridge | Country | Type | Year |
| Barnitzke machine gun | | | 7.92×57mm Mauser | Germany | General purpose machine gun | 1944 |

## Hesitation lock

| Name | Manufacturer | Cartridge | Country | Type | Year |
| M50 Reising | H & R Firearms | .45 ACP | United States | Submachine gun | 1940 |
| Remington Model 51 | Remington Arms | .32 ACP .380 ACP | United States | Semi-automatic pistol | 1917 |
| Remington R51 | Remington Arms | 9×19mm Parabellum | United States | Semi-automatic pistol | 2014 |
| Rudd Arms AR-180 | Rudd Arms | 5.56×45mm NATO | Canada | Assault rifle | |
| SIG MKMO | SIG Sauer | 9×19mm Parabellum | Switzerland | Submachine gun | 1930 |

## Radial delayed blowback

| Name | Manufacturer | Cartridge | Country | Type | Year |
| CMMG MkG | CMMG | .45 ACP | United States | Submachine gun | 2017 |
| CMMG Banshee | CMMG | 9×19mm .40 S&W .45 ACP FN 5.7×28mm 10mm Auto | United States | Semi-automatic pistol | 2021 |
| MP-A2 | A Squared Armament | 9x19mm Parabellum | United States | Submachine gun | 2020 |
| NPC-9 | | 9x19mm Parabellum | United States | Submachine gun | 2020 |
| PGS15 | Preppers Gun Shop MFG | 9x19mm Parabellum | United States | Submachine gun | 2020 |

## Toggle delayed blowback

| Name | Manufacturer | Image | Cartridge | Country | Type | Year |
| Pedersen rifle | Frankford Arsenal | | .276 Pedersen | United States | Semi-automatic rifle | 1926 |
| Schwarzlose machine gun | Steyr | | 8×50mmR Mannlicher | Austria-Hungary | Medium machine gun | 1907 |

## Vector delayed blowback

| Name | Manufacturer | Image | Cartridge | Country | Type | Year |
| Jatimatic | Tampereen Asepaja Oy | | 9×19mm | Finland | Submachine gun | 1983–1986 |
| KRISS Vector | KRISS USA, Inc. | | 9×19mm 9×21mm .357 SIG .40 S&W 10mm Auto .45 ACP | United States | Submachine gun | 2006 |

## Detent delayed blowback

| Name | Manufacturer | Image | Cartridge | Country | Type | Year |
| Show Low Manufacturing Black-Jack | Show Low Manufacturing | | 10mm Auto | United States | Carbine | 2025 |