List of delayed-blowback firearms

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Below is a list of delayed-blowback firearms.

Lever delayed blowback

NameManufacturerImage Cartridge CountryTypeYear
AA-52 machine gun Manufacture d'armes de Saint-Étienne Mitrailleuse-IMG 1728.jpg 7.62×51mm NATO
7.5×54mm French 		Flag of France.svg France General-purpose machine gun 1952
Danuvia 43M Danuvia Gepgyar Danuvia-39M.png 9×25mm Mauser Flag of Hungary (1915-1918, 1919-1946).svg  Hungary Submachine gun 1939
FAMAS Nexter FAMAS F1 with bayonet.jpg 5.56×45mm NATO Flag of France.svg France Bullpup assault rifle 1978
FNAB-43 Fabbrica Nazionale d'Armi di Brescia Cuchillos, picas, armaduras y bayonetas - Museo de Armas de la Nacion 55.JPG 9×19mm Parabellum Flag of Italy.svg  Italian Social Republic Submachine gun 1943
Garanin general-purpose machine guns 7.62×54mmR Flag of the Soviet Union.svg  Soviet Union General-purpose machine gun 1957
MAC-58 Manufacture d'armes de Saint-Étienne .50 BMG Flag of France.svg France Heavy machine gun 1958
San Cristobal Carbine Armería San Cristóbal Weapon Factory Cam&che.jpg .30 Carbine Flag of the Dominican Republic.svg  Dominican Republic Carbine 1950
ST Kinetics CPW ST Kinetics 9×19mm Parabellum
FN 5.7×28mm
HK 4.6×30mm 		Flag of Singapore.svg  Singapore Submachine gun Personal defense weapon 2008
TKB-517 Tula State Plant KorobowTKB-517.svg 7.62×39mm Flag of the Soviet Union.svg  Soviet Union Assault rifle 1952
VAHAN Vahan2.JPG 7.62×39mm Flag of Armenia.svg  Armenia Assault rifle 1952

Roller delayed blowback

NameManufacturerImage Cartridge CountryTypeYear
BW20 Pakistan Ordnance Factories 7.62x51mm NATO Flag of Pakistan.svg Pakistan Assault rifle 2021
BW21 Pakistan Ordnance Factories 7.62x51mm NATO Flag of Pakistan.svg Pakistan Assault rifle 2021
Calico M960 Calico Light Weapons Systems Calico M960 SMG.jpg 9×19mm Parabellum Flag of the United States.svg United States Submachine gun Carbine 1990
CEAM Modèle 1950 Centre d'Etudes et d'Armement de Mulhouse AME1.jpg .30 Carbine
7.92×33mm Kurz 		Flag of France.svg France Assault rifle 1949
CETME Ameli CETME Ameli Ejercito espanol.jpg 5.56×45mm NATO Flag of Spain (1945-1977).svg  Spain Light machine gun 1974
CETME Model L CETME CETMEL.lateral.der.png 5.56×45mm NATO Flag of Spain.svg Spain Assault rifle 1981
CETME rifle CETME 7.62×51mm CETME Flag of Spain (1945-1977).svg  Spain Battle rifle 1957
CW56 Pakistan Ordnance Factories 5.56×45mm NATO Flag of Pakistan.svg Pakistan Assault rifle 2022
DUG Rexim S.A. 7.62×51mm NATO Flag of Switzerland (Pantone).svg   Switzerland Battle rifle 1956
Heckler & Koch G3 Heckler & Koch DCB Shooting G3 pictures.jpg 7.62×51mm NATO Flag of Germany.svg  West Germany Battle rifle 1959
Heckler & Koch G41 Heckler & Koch 5.56×45mm NATO Flag of Germany.svg  West Germany Assault rifle 1984
Heckler & Koch HK21 Heckler & Koch HK 21 LMG RIGHT SIDE.jpg 7.62×51mm NATO Flag of Germany.svg  West Germany General-purpose machine gun 1961
Heckler & Koch HK33 Heckler & Koch HK33A2 Flickr (yet another finn).jpg 5.56×45mm NATO Flag of Germany.svg  West Germany Assault rifle 1968
Heckler & Koch MP5 Heckler & Koch MP5.jpg 9×19mm Parabellum Flag of Germany.svg Germany Submachine gun 1964
Heckler & Koch P9 Heckler & Koch Heckler & Koch p9s.jpg 9×19mm Parabellum
.45 ACP
7.65×21mm Parabellum 		Flag of Germany.svg  West Germany Semi-automatic pistol 1965
Heckler & Koch PSG1 Heckler & Koch PSG1 and MSG 90.jpg 7.62×51mm NATO Flag of Germany.svg  West Germany Semi-automatic sniper rifle 1972
Korth PRS Korth .45 ACP Flag of Germany.svg Germany Semi-automatic Pistol 2010s
MDP-9 Angstadt Arms 9×19mm Parabellum Flag of the United States.svg United States Submachine gun Carbine
REAPR Ohio Ordnance Flag of the United States.svg United States Medium machine gun 2023
SIG 510 Schweizerische Industrie Gesellschaft Fass57-diag.jpg 7.62×51mm NATO Flag of Switzerland (Pantone).svg  Switzerland Battle rifle 1957
SIG MG 710-3 Schweizerische Industrie Gesellschaft SIG MG 710-3.jpg 7.62×51mm NATO Flag of Switzerland (Pantone).svg  Switzerland General-purpose machine gun 1955
SRM Arms Model 1216 [1] SRM Arms 3-Gun-PosterLogo.jpg 12 gauge Flag of the United States.svg United States Semi-automatic shotgun 2011
Sturmgewehr 45 Mauser 7.92×33mm Kurz Flag of Germany (1935-1945).svg  Germany Assault rifle 1944
Grand Power Stribog SP9A3

Gas delayed blowback

NameManufacturerImage Cartridge CountryTypeYear
Arsenal P-M02 Arsenal Firearms 9×19mm Parabellum Flag of Bulgaria.svg  Bulgaria Semi-automatic pistol 1999
BFD 1911 Better Firearms Designs .45 ACP Flag of the United States.svg  United States Semi-automatic pistol
Grossfuss Sturmgewehr Grossfuss Grossfuss Sturmgewehr.jpg 7.92×33mm Kurz Flag of Germany (1935-1945).svg  Germany Assault rifle 1945
Heckler & Koch P7 Heckler & Koch HK-P7.jpg 9×19mm Parabellum
.22 Long Rifle
.32 ACP
.380 ACP
.40 S&W
.45 ACP 		Flag of Germany.svg  West Germany Semi-automatic pistol 1976
Kevin ZP98 Zbrojovka Brno Pistole Kevin.jpg .380 ACP Flag of the Czech Republic.svg  Czech Republic Semi-automatic pistol 2000
Laugo Alien Ján Lučanský 9×19mm Parabellum Flag of the Czech Republic.svg  Czech Republic Semi-automatic pistol 2019
Krag–Jørgensen pistol 9×19mm Parabellum Flag of Norway.svg  Norway Semi-automatic pistol
PCC Sureshot Armament Group .45 ACP Flag of the United States.svg  United States Semi-automatic pistol
Steyr GB Steyr Mannlicher Steyr GB (parabellum pl).jpg 9×19mm Parabellum Flag of Austria.svg  Austria Semi-automatic pistol 1968
Type 77B Norinco 9×19mm Parabellum Flag of the People's Republic of China.svg  China Semi-automatic pistol 1981
Volkssturmgewehr Gustloff-Werke Volkssturm Gewehr VG 1-5.JPG 7.92×33mm Kurz Flag of Germany (1935-1945).svg  Germany Semi-automatic rifle 1944
W+F P47 Waffenfabrik Bern 9×19mm Parabellum Flag of Switzerland (Pantone).svg   Switzerland Semi-automatic pistol 1947
Walther CCP Walther Walther-CCP.jpg 9×19mm Parabellum Flag of Germany.svg Germany Semi-automatic pistol 2014

Flywheel delayed blowback

NameManufacturerImage Cartridge CountryTypeYear
Barnitzke machine gun 7.92×57mm Mauser Flag of Germany (1935-1945).svg  Germany General purpose machine gun 1944

Hesitation lock

NameManufacturerImage Cartridge CountryTypeYear
M50 Reising H & R Firearms Model-50.jpg .45 ACP Flag of the United States.svg United States Submachine gun 1940
Remington Model 51 Remington Arms Remington pederson 51.jpg .32 ACP
.380 ACP 		Flag of the United States.svg United States Semi-automatic pistol 1917
Remington R51 Remington Arms Remington R51.jpg 9×19mm Parabellum Flag of the United States.svg United States Semi-automatic pistol 2014
Rudd Arms AR-180 Rudd Arms 5.56×45mm NATO Flag of Canada (Pantone).svg Canada Assault rifle
SIG MKMO SIG Sauer Sig mkms-p.jpg 9×19mm Parabellum Flag of Switzerland (Pantone).svg  Switzerland Submachine gun 1930
Star Si 35 Star Bonifacio Echeverria Pistola ametralladora.jpg 9mm Largo
.38 Auto 		Flag of Spain.svg Spain Submachine gun 1935

Radial delayed blowback

NameManufacturerImage Cartridge CountryTypeYear
CMMG MkG CMMG .45 ACP Flag of the United States.svg United States Submachine gun 2017
CMMG BansheeCMMG 9×19mm
.40 S&W
.45 ACP
FN 5.7×28mm
10mm Auto 		Flag of the United States.svg United States Semi-automatic pistol 2021
MP-A2 A Squared Armament 9x19mm Parabellum Flag of the United States.svg United States Submachine gun 2020
NPC-9 9x19mm Parabellum Flag of the United States.svg United States Submachine gun 2020
PGS15 Preppers Gun Shop MFG 9x19mm Parabellum Flag of the United States.svg United States Submachine gun 2020

Screw/Turnbolt delayed blowback

NameManufacturerImage Cartridge CountryTypeYear
BSA Autorifle Birmingham Small Arms .303 British
7.92×57mm Mauser
7.62×54mmR 		Flag of the United Kingdom.svg  United Kingdom Semi-automatic rifle 1924
Demro TAC-1 Demro Products Inc. 9x19mm Parabellum
.45 ACP 		Flag of the United States.svg  United States Submachine gun 1974
Kalashnikov Model 1942 Mikhail Kalashnikov AK-SMG-1942.jpg 7.62x25mm Tokarev Flag of the Soviet Union.svg  Soviet Union Submachine gun 1942
Krnka-HirtenbergHirtenberg Ammunition Factory7mm Krnka experimentalFlag of Austria-Hungary (1867-1918).svg  Austria-Hungary Semi-automatic rifle 1908
Mannlicher Model 1893 Mannlicher Patrone 88 Flag of Austria-Hungary (1867-1918).svg  Austria-Hungary Semi-automatic rifle 1893
Salvator-Dormus M1893 Škoda Works MG-Salvator Dormus.jpg 8x50mmR Mannlicher Flag of Austria-Hungary (1867-1918).svg  Austria-Hungary Semi-automatic rifle 1893
Sheppard AutorifleU.S. Ordnance Co. .30-06 Springfield Flag of the United States.svg  United States Semi-automatic rifle 1921
Thompson Autorifle Auto Ordnance Thompson Autorifle only NPS.jpg .30-06 Springfield Flag of the United States.svg  United States Semi-automatic rifle 1923

Toggle delayed blowback

NameManufacturerImage Cartridge CountryTypeYear
Pedersen rifle Frankford Arsenal Pedersen Rifle.jpg .276 Pedersen Flag of the United States.svg United States Semi-automatic rifle 1926
Schwarzlose machine gun Steyr 1907 MG M System Schwarzlose 8mm.jpg 8×50mmR Mannlicher Flag of Austria-Hungary (1867-1918).svg  Austria-Hungary Medium machine gun 1907

Vector delayed blowback

NameManufacturerImage Cartridge CountryTypeYear
Jatimatic Tampereen Asepaja Oy Jati-Matic.JPG 9×19mm Flag of Finland.svg  Finland Submachine gun 1983–1986
KRISS Vector KRISS USA, Inc. Kriss Vector SMG Realistic.png 9×19mm
9×21mm
.357 SIG
.40 S&W
10mm Auto
.45 ACP 		Flag of the United States.svg United States Submachine gun 2006

Detent delayed blowback

NameManufacturerImage Cartridge CountryTypeYear
Show Low Manufacturing Black-JackShow Low Manufacturing 10mm Auto Flag of the United States.svg  United States Carbine 2025

References

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