The PTR-91 is a US-manufactured semi-automatic rifle built on the HK91/G3 roller-delayed blowback pattern, produced by PTR Industries. It uses original HK91 tooling acquired from the Portuguese government and accepts genuine G3/HK91 magazines. The PTR-91 is the most practical way for American shooters to own a G3-pattern rifle at non-collector prices. Type: Rifle Action: Semi-Automatic Caliber: 7.62x51mm Capacity: 20 Year introduced: 2004, USA Weight: 163.2 oz Overall length: 29.3" Status: Active Intended use: civilian, target, service