Engineering:List of delayed-blowback firearms

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Below is a list of delayed-blowback firearms.

Lever delayed blowback

Name Manufacturer Image Cartridge Country Type Year
AA-52 machine gun Manufacture d'armes de Saint-Étienne 250px 7.62×51mm NATO
7.5×54mm French 		 France General-purpose machine gun 1952
Danuvia 43M Danuvia Gepgyar 250px 9×25mm Mauser  Hungary Submachine gun 1939
Dragon Rideout Arsenal 9×19mm Parabellum  United States Semi-automatic pistol 2025
FAMAS Nexter 250px 5.56×45mm NATO  France Bullpup assault rifle 1978
FNAB-43 Fabbrica Nazionale d'Armi di Brescia 250px 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 250px .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 250px 7.62×39mm  Soviet Union Assault rifle 1952
VAHAN 250px 7.62×39mm  Armenia Assault rifle 1952

Roller delayed blowback

Name Manufacturer Image Cartridge Country Type Year
BW20[1] 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 250px 9×19mm Parabellum  United States Submachine gun Carbine 1990
CEAM Modèle 1950 Centre d'Etudes et d'Armement de Mulhouse 250px .30 Carbine
7.92×33mm Kurz 		 France Assault rifle 1949
CETME Ameli CETME 250px 5.56×45mm NATO File:Flag of Spain 1945 1977.svg Spain Light machine gun 1974
CETME Model L CETME 250px 5.56×45mm NATO  Spain Assault rifle 1981
CETME rifle CETME 7.62×51mm CETME File:Flag of Spain 1945 1977.svg Spain Battle rifle 1957
CW56 Pakistan Ordnance Factories 5.56×45mm NATO  Pakistan Assault rifle 2022
DUG Rexim S.A. 7.62×51mm NATO File:Flag of Switzerland (Pantone).svg Switzerland Battle rifle 1956
Heckler & Koch G3 Heckler & Koch 250px 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 250px 7.62×51mm NATO  West Germany General-purpose machine gun 1961
Heckler & Koch HK33 Heckler & Koch 250px 5.56×45mm NATO  West Germany Assault rifle 1968
Heckler & Koch MP5 Heckler & Koch 250px 9×19mm Parabellum  Germany Submachine gun 1964
Heckler & Koch P9 Heckler & Koch 250px 9×19mm Parabellum
.45 ACP
7.65×21mm Parabellum 		 West Germany Semi-automatic pistol 1965
Heckler & Koch PSG1 Heckler & Koch 250px 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
PTR rifle PTR Industries, Inc. 250px 7.62×51mm NATO  United States Semi-automatic rifle 2000
REAPR Ohio Ordnance  United States Medium machine gun 2023
SIG 510 Schweizerische Industrie Gesellschaft 250px 7.62×51mm NATO File:Flag of Switzerland (Pantone).svg Switzerland Battle rifle 1957
SIG MG 710-3 Schweizerische Industrie Gesellschaft 250px 7.62×51mm NATO File:Flag of Switzerland (Pantone).svg Switzerland General-purpose machine gun 1955
SRM Arms Model 1216[2] SRM Arms 250px 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 Image Cartridge Country Type Year
Arsenal P-M02 Arsenal Firearms 9×19mm Parabellum  Bulgaria Semi-automatic pistol 1999
BFD 1911 Better Firearms Designs[3] .45 ACP  United States Semi-automatic pistol
Grossfuss Sturmgewehr Grossfuss 250px 7.92×33mm Kurz  Germany Assault rifle 1945
Heckler & Koch P7 Heckler & Koch 250px 9×19mm Parabellum
.22 Long Rifle
.32 ACP
.380 ACP
.40 S&W
.45 ACP 		 West Germany Semi-automatic pistol 1976
Kevin ZP98 Zbrojovka Brno 250px .380 ACP  Czech Republic Semi-automatic pistol 2000
Laugo Alien Ján Lučanský 9×19mm Parabellum  Czech Republic Semi-automatic pistol 2019
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 250px 9×19mm Parabellum  Austria Semi-automatic pistol 1968
Type 77B Norinco 9×19mm Parabellum  China Semi-automatic pistol 1981
Volkssturmgewehr Gustloff-Werke 250px 7.92×33mm Kurz  Germany Semi-automatic rifle 1944
W+F P47 Waffenfabrik Bern 9×19mm Parabellum File:Flag of Switzerland (Pantone).svg Switzerland Semi-automatic pistol 1947
Walther CCP Walther 250px 9×19mm Parabellum  Germany Semi-automatic pistol 2014

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 Image Cartridge Country Type Year
701 rifle 208th Research Institute 7.62x39mm  China Assault rifle 1966
M50 Reising H & R Firearms 250px .45 ACP  United States Submachine gun 1940
Remington Model 51 Remington Arms 250px .32 ACP
.380 ACP 		 United States Semi-automatic pistol 1917
Remington R51 Remington Arms 250px 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 250px 9×19mm Parabellum File:Flag of Switzerland (Pantone).svg Switzerland Submachine gun 1930
Star Si 35 Star Bonifacio Echeverria 250px 9mm Largo
.38 Auto 		 Spain Submachine gun 1935

Radial delayed blowback

Name Manufacturer Image 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

Screw/Turnbolt delayed blowback

Name Manufacturer Image Cartridge Country Type Year
BSA Autorifle Birmingham Small Arms .303 British
7.92×57mm Mauser
7.62×54mmR 		 United Kingdom Semi-automatic rifle 1924
Demro TAC-1 Demro Products Inc. 9x19mm Parabellum
.45 ACP 		 United States Submachine gun 1974
Kalashnikov Model 1942 Mikhail Kalashnikov 250px 7.62x25mm Tokarev  Soviet Union Submachine gun 1942
Krnka-Hirtenberg Hirtenberg Ammunition Factory 7mm Krnka experimental File:Flag of Austria-Hungary (1867–1918).svg Austria-Hungary Semi-automatic rifle 1908
Mannlicher Model 1893 Mannlicher Patrone 88 File:Flag of Austria-Hungary (1867–1918).svg Austria-Hungary Semi-automatic rifle 1893
Salvator-Dormus M1893 Škoda Works 250px 8x50mmR Mannlicher File:Flag of Austria-Hungary (1867–1918).svg Austria-Hungary Heavy machine gun 1893
Sheppard Autorifle U.S. Ordnance Co. .30-06 Springfield  United States Semi-automatic rifle 1921
Thompson Autorifle Auto Ordnance 250px .30-06 Springfield  United States Semi-automatic rifle 1923

Toggle delayed blowback

Name Manufacturer Image Cartridge Country Type Year
Pedersen rifle Frankford Arsenal 250px .276 Pedersen  United States Semi-automatic rifle 1926
Schwarzlose machine gun Steyr 250px 8×50mmR Mannlicher File:Flag of Austria-Hungary (1867–1918).svg Austria-Hungary Medium machine gun 1907

Vector delayed blowback

Name Manufacturer Image Cartridge Country Type Year
Jatimatic Tampereen Asepaja Oy 250px 9×19mm  Finland Submachine gun 1983–1986
KRISS Vector KRISS USA, Inc. 250px 9×19mm
9×21mm
.357 SIG
.40 S&W
10mm Auto
.45 ACP 		 United States Submachine gun 2006
Piranha pistol Piranha International Inc. Corp of NV 9×19mm  United States Semi-automatic pistol 1969

Detent delayed blowback

Name Manufacturer Image Cartridge Country Type Year
Show Low Manufacturing Black-Jack[4] Show Low Manufacturing 10mm Auto  United States Carbine 2025

References

  1. ↑ https://www.thefirearmblog.com/blog/pakistan-army-trials-and-the-resurgence-of-the-roller-delayed-blowback-44822362
  2. ↑ 1216 BULLISH HEAT - Tactical-Life.com
  3. ↑ https://betterfirearmsdesign.com/
  4. ↑ https://www.thefirearmblog.com/blog/2024/01/26/shot-2024-show-low-black-jack-is-a-9mm-mashup/



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