With careful attention to the mechanical ratios, the gas system could be omitted. The origin of the G3 can be traced back to the final years of World War II when Mauser engineers at the Light Weapon Development Group ( Abteilung 37) at Oberndorf am Neckar designed the Maschinenkarabiner Gerät 06 (MKb Gerät 06, "machine carbine device 06") prototype assault rifle chambered for the intermediate 7.92×33mm Kurz cartridge, first with the Gerät 06 model using a roller-locked short recoil mechanism originally adapted from the MG 42 machine gun but with a fixed barrel and conventional gas-actuated piston rod. The early Mauser Gerät 06H prototype assault rifle and The CEAM Modèle 1950, a French effort to put the StG 45(M) concept into mass production. The G3 was the service rifle of the armed forces of Germany until it was replaced by the G36 in the 1990s. The Heckler & Koch G3 ( Gewehr 3) is a 7.62×51mm NATO, select-fire battle rifle developed in the 1950s by the German armament manufacturer Heckler & Koch (H&K) in collaboration with the Spanish state-owned design and development agency CETME ( Centro de Estudios Técnicos de Materiales Especiales). Kongsberg Gruppen Pakistan Ordinance FactoriesĢ00–400 metres (219–437 yd) sight adjustmentsĦ00 metres (656 yd) with Fero Z24 telescopic sightĥ-, 10-, 20-, 30-, or 40-round detachable box, and 50-round and 100-round drum magazine
The AG-3, Norwegian made G3A5 variant of the G3