SKU 51655115387 Brand Palmetto State Armory Model Number 51655115387 UPC 51655115387 DETAILS Caliber: 7.62x39 Barrel Length: 12.5"  Barrel Twist Rate: 1:10” Barrel Material: 4150 Steel Barrel Finish: Gas Nitride Muzzle Device: Linear Comp Flash Can Muzzle Thread: M24x1.5 RH  Receiver: Stamped Steel  Front Trunnion: Hammer Forged 4340AQ Bolt: Hammer Forged  Carrier: Hammer Forged  Handguard Type: JL Billet upper and lower handguard Grip: Classic AK Grip, Black Brace: JMAC Mod 2 stock adapter with SBA3 Adjustable Brace Fire Control Group: Single Stage, Single Hook