The PTR MSG91 is the designated marksman variant of the PTR 91 GI, featuring a heavy match-profile barrel, a raised cheek rest stock, and a PTR-specific bipod mount. The roller-delayed blowback mechanism is unchanged from the standard PTR 91 but the MSG91 designation indicates precision-focused ergonomics and the heavier barrel for improved sustained-fire accuracy. A cost-effective alternative to the PSG-1 for .308 Win semi-auto precision shooters. Type: Rifle Action: Semi-Automatic Caliber: .308 Win Capacity: 20 Year introduced: 2010, USA Weight: 198 oz Overall length: 40.5" Status: Active Intended use: precision, law_enforcement, dmr