PTR 91F is the standard fixed-stock G3 clone built by PTR Industries in the U.S. Uses German surplus tooling for authentic G3 geometry; semi-auto only. Cold hammer-forged barrel. The most popular American G3-pattern rifle. Type: Rifle Action: Roller-Delayed Caliber: 7.62x51mm NATO Capacity: 30 Year introduced: 2000, USA Weight: 100 oz Overall length: 40" Status: Active Intended use: sport, hunting