CALIBER:243 Win CHAMBERLOWER RECEIVER:RRA LAR-BT3 BILLET LOWERUPPER RECEIVER:RRA LAR-BT3 BILLET A4 UPPERBARREL:20-INCH FLUTED STAINLESS STEEL, 1:10 TWIST, CRYOGENICALLY TREATEDMUZZLE DEVICE:RRA OPERATOR BRAKE / 5/824 THREADGAS BLOCK:LOW PROFILE GAS BLOCK, RIFLE LENGTH GAS SYSTEMTRIGGER:RRA TWO STAGE TRIGGERBUTTSTOCK:RRA 6-POSITION OPERATOR CAR STOCKPISTOL GRIP:HOGUE RUBBER GRIPHANDGUARD:RRA LIGHTWEIGHT FREE FLOAT RAIL, 17 INCH EXTENDED, M-LOK COMPATIBLEWEIGHT:9.2 POUNDSLENGTH:39 INCHESINCLUDES:ONE MAGAZINE, CASE, MANUAL AND WARRANTY INFORMATION.