Pioneer Arms Sporter Underfolder Forged Features The Pioneer Arms Sporter Underfolder Forged is produced in Radom Poland using the licensed Kalashnikov blueprint built in facilities once used by the Polish Military Circle 11 Plant. A gas piston operating system and internal hammer firing system drive reliable cycling through a steel frame and single-configuration rifled barrel with a 1-10 twist rate. The forged front trunnion adds strength at one of the rifle s highest-stress points while the AK-style muzzle brake helps manage recoil and muzzle rise during rapid strings of fire. A manual safety post front sight and adjustable blade rear sight round out a traditional field-proven AK control layout. The horizontal stamped sheet metal underfolder stock stays level rather than angled when deployed giving the shooter a more consistent cheek rest and repeatable sight picture shot to shot. Polish laminated wood handguards finished with a hand-rubbed oil-based varnish add palm swells for a more secure comfortable grip during extended range sessions. The threaded 14x1mm LH barrel accepts muzzle devices for shooters who want to customize recoil management and the rifle ships with a cable trigger lock for secure storage. At 7.49 pounds with polymer grips and a 37.5-inch overall length this underfolder is a compact authentic AK platform for sale at GrabAGun. Pioneer Arms Sporter Underfolder Forged Specifications Manufacturer: Pioneer Arms Model: Sporter Underfolder Forged Type: Semi-Automatic Rifle Caliber: 7.62 X 39 Barrel Length: 16.3 Capacity: 30+1 Overall Length: 37.5 Safety: Manual Safety Frame Finish: Black Front Sight: Post Rear Sight: Adjustable Blade Grips: Polymer Weight: 7.49 lbs Stock: Laminated Wood Underfolding Muzzle Thread Pitch: 14x1mm LH Operating System: Gas Piston Firing System: Internal Hammer Frame Material: Steel Magazine Type: Detachable Box Magazine Barrel Twist: 1-10 Muzzle Device: AK-style Brake Available At: GrabAGun