PTR K3P BR Features The PTR K3P BR is built around PTR s roller delayed blowback operating system a mechanism known for smooth recoil characteristics and reliable cycling with full power 7.62x51mm / .308 Win ammunition. A 12.5 inch threaded barrel with a 1 in 10 inch right hand twist balances ballistic performance with the compact braced pistol configuration PTR has built this platform around. The barrel is finished in black and threaded on 5/8x24 to accept muzzle devices or suppressors for shooters managing recoil and signature in a short barrel configuration. A two stage adjustable trigger breaking between 9 and 10 pounds gives the shooter a defined repeatable trigger press despite the heavier pull weight typical of roller delayed systems. The aluminum receiver carries a black powdercoat finish and a full length Picatinny rail for optics mounting while an extended M-LOK handguard wraps the barrel for lights grips and other accessories. Black polymer furniture includes the grip and the SBA4 brace which ships factory installed to give the pistol a stable point of contact against the shooter s forearm. A two position safety lever keeps the manual of arms simple and fast to operate under stress. Feeding from a 20 round magazine and weighing 9.6 pounds the K3P BR ships complete with a padded polymer case one magazine and a trigger cable lock giving buyers a ready to run roller delayed pistol platform for sale at GrabAGun. PTR K3P BR Specifications Manufacturer: PTR Model: K3P BR Caliber: 7.62x51mm / 308 Win Capacity: 20+1 Action: Semi-Auto Overall Length: 34.25-37 Barrel Length: 12.5 Barrel Description: Threaded Barrel Finish: Black Barrel Material: Steel Twist Rate: 1:10 RH Thread Pattern: 5/8x24 Receiver Material: Aluminum Receiver Finish: Black Powdercoat Receiver Description: Picatinny Rail Handguard: M-LOK Grips: Black Polymer Stock Description: SBA4 Brace Trigger: 2-Stage Adjustable 9-10 lbs Safety: 2 Position Lever Weight: 9.60 lbs Available At: GrabAGun