The PTR-91 is a domestic American-made semi-auto rifle using tooling and designs from the HK G3 battle rifle. PTR Industries acquired original HK tooling and produces a faithful reproduction of the G3 semi-auto variant. The 18-inch cold-hammer-forged barrel and HK-pattern furniture provide the full G3 experience. Type: Semi-Auto Rifle Action: Roller Delayed Blowback Caliber: 7.62x51mm Capacity: 20 Year introduced: 2002, USA Weight: 10 oz Overall length: 40.4" Status: Active Intended use: Range, Collection, Home Defense