Barnitzke machine gun

The Barnitzke machine gun is a machine gun of late World War II German origin. The weapon uses an unusual delayed blowback operation, where during firing the bolt opening is delayed by the rotational inertia of two flywheels, which are driven by a rack and pinion arrangement on the bolt carrier.

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v • d • e Delayed blowback firearms

Lever-delayed	2B-A-30 • 2B-A-40 • 2B-P-25 • 2B-P-30 • 2B-P-40 • A2P • AA-52 • AB, ARGB and AVB • Avenger • B76 • Campo-Giro • CPW • Cristóbal • ČZW 40 • ČZW 127 • ČZW 438 • ČZW 556 • ČZW 762 • ČZW 9 • ČZW 9 PS • Danuvia • Dlugov • FAMAS • Five-seveN • FNA-B43 • Garanin • Janecek • J67 • KB-P-790 • Knötgen • LCZ-B20 • MAC-58 • MAS Tritube • MAT Tritube • NMD-16 • Pallad M • PMM • M1891 • MG M.07/12 • RAG-30/SAG-30 • Ruger-57 • Serbu 10mm SMG • Sterling • TKB-09 • TKB-010 • TKB-517

Roller-delayed	1216 • AM55 • Ameli • CETME rifle • DIREX • Febres recoilless • G3 • G41 • Gerät 03 • Gerät 06(H) • HK21 • HK33 • HK36 • HK43 • JP-5 • MDP-9 • Model L • M960 • Modèle 1950 • MP5 • MSG90 • Ortolani • P9 • P46/UCP • PSG-1 • POF BW20 • POF BW21 • POF CW39 • POF CW56 • REAPR • MG 710 • SAR-8 HBSR • SG 510 • SL6 • SL7 • SR9 • StG 45(M) • Type 11 • URZ • Vorgrimmler • ZF-56

Gas-delayed	Alien • AS-44 (7th prototype) • BFD 1911 • CCP • Firefly • M.R. M1911 • SAG PCC • GB • Grossfuss • Krag • M-77B • P47 • P7 • P-M02 • Volkssturmgewehr

Hesitation locked	AAI SMG • Cam-Stat • KP 5 • MKMO • Model 51 • Model 53 • R51 • Reising • Rudd Arms AR-180 • Savage .45 • Savage Models 1907, 1915 and 1917 • Singular • SIG MP41

Primer actuated	APT • Clarke • Garand 1919 • Springfield 1903

Screw-delayed	BSA Autorifle • Demro TAC-1 • Kalashnikov submachine gun • Krnka-Hirtenberg • Mannlicher M1893 • Salvator Dormus M1893 • Sheppard Autorifle • M1909 • Thompson Autorifle

Inertia-delayed	Baksan • Brixia M1930 • FaB 556

Flywheel-delayed	Barnitzke • Kazachok • PM-9

Radial-delayed	CMMG MkG • CMMG Mk9 • CMMG Mk17 • CMMG Mk57 • CMMG Dissent •MP-A2 • NPC-9 • PGS15

Vector-delayed	Disraptor • Trukhanov • K10 • KARD • Vector

Bolt-delayed	RU35 • Si35 • TN35

Chamber ring-delayed	Kimball • Mann • Seecamp • T3

Hammer-delayed	Rexim Favor • White-Merrill

Toggle-delayed	Furrer MP41 • Pedersen • Schwarzlose

Fosbery-delayed	Neal

Torsion-delayed	MAC-47

Locking lug delayed	FIAT • Beretta Mod.1918 • Brescia • Revelli • Villar Perosa

Spring delayed	Jurek

Crank delayed	Vasilyev

Flapper delayed	Mauser 1912/14

Unknown	66-136 • 701 • Brunswick • ‎Kolesnikov ‎• M1916 Kalashnikov • Neugodov • QX-04 • Scotti Aero Naval