The Heckler & Koch G3 is a roller-delayed blowback battle rifle developed from the Spanish CETME. Adopted by the Bundeswehr in 1959 and eventually used by over 40 nations. Known for reliability, accuracy, and the distinctive fluted chamber that aids extraction. Type: Rifle Action: Roller-Delayed Caliber: 7.62x51mm NATO Capacity: 20 Year introduced: 1959, Germany Weight: 192 oz Overall length: 40.2" Status: Discontinued Military use: Yes Intended use: military