HK G3A3, fixed-stock military G3 in .308 Winchester. Roller-delayed blowback, the primary variant fielded by Bundeswehr and allies. Type: Rifle Action: Semi-Automatic Caliber: .308 Winchester Capacity: 20 Year introduced: 1959, Germany Weight: 10 oz Overall length: 40.2" Status: Active Military use: Yes Intended use: Military, Collector