The PTR 91 GI is an American-made clone of the Heckler & Koch G3/HK91. Roller-delayed blowback action, fluted chamber, and HK-pattern furniture. Uses standard G3 magazines. PTR manufactures to original HK tooling standards acquired from Portugal. Type: Semi-Auto Rifle Action: SA Caliber: .308 Win Capacity: 20 Year introduced: 2000, USA Weight: 96 oz Overall length: 40.2" Status: Active Intended use: Tactical, Collector, Competition