The MG 131 (shortened from German: Maschinengewehr 131, or "machine gun 131") was a German 13 mm caliber machine gun developed in 1938 by Rheinmetall-Borsig...

The MG 17 was a 7.92 mm machine gun produced by Rheinmetall-Borsig for use at fixed mountings in many World War II Luftwaffe aircraft, typically as forward-firing...

the under-development, Borsig-designed Hecklafette HL 131V quadmount tail turrets (each armed with four Rheinmetall-Borsig MG 131 machine guns apiece),...

Japanese Navy during World War II. It was a license-built copy of the German MG 131 machine gun. Aichi B7A Aichi E16A Mitsubishi A6M5c[citation needed] Mitsubishi...

standardized the rear armament with the planned, Borsig-designed Hecklafette manned HL 131V quadmount MG 131 machine gun turret for the first time. Not produced...

fan. It was armed with one Rheinmetall-Borsig 7.92 mm (0.312 in) MG 17 machine gun and one 13 mm (0.51 in) synchronized MG 131 machine gun in each wing...

rockets for overloaded take offs. A rack of four 470 N (106 lbf) Rheinmetall-Borsig 109-502 rockets mounted on the rear of the cargo compartment was tested...

(300 L/80 US gal)) R IV (two 30 mm (1.18 in) Rheinmetall-Borsig MK 108 underwing gunpods) R VI (two 20 mm Mauser MG 151/20 underwing gunpods with 135 rpg) R...

MG 30 Rheinmetall-Borsig 7.92×57mm Mauser 1934 10.2 MG 81 Light machine gun Recoil-operated aircraft  Nazi Germany MG 34 7.92×57mm Mauser 1940 6.5 MG...

decision was that the MAN design used an existing turret designed by Rheinmetall-Borsig, while the DB design would have required a brand-new turret to be...