The PTR 91 F features a fixed thumbhole stock for compliance in states with assault weapon restrictions. Functions identically to the standard PTR 91 GI. The fixed stock reduces legal scrutiny in restricted states while maintaining the core HK91 design. Type: Semi-Auto Rifle Action: SA Caliber: .308 Win Capacity: 20 Year introduced: 2002, USA Weight: 96 oz Overall length: 40.2" Status: Active Intended use: Tactical, Hunting