Rock River Arms AR0784 LAR-15M NM A4 Complete Upper, 223 Wylde 20" Stainless Heavy Match Barrel, Black Rec/12.50" M-LOK Handgaurd, Railed Gas Block, A2 Flash Hider

CALIBER:.223 WYLDE CHAMBER FOR 5.56MM AND .223 CALIBERUPPER RECEIVER:FORGED A4BARREL:20-INCH AIR GAUGED HEAVY MATCH STAINLESS STEEL, 1:8 TWIST, CRYOGENICALLY TREATEDMUZZLE DEVICE:A2 FLASH HIDER / 1/228 THREADGAS BLOCK:GAS BLOCK SIGHT BASEHANDGUARD:RRA NM CMP TRO ALUMINUM 12.5 INCH RIFLE LENGTH FREE FLOAT HANDGUARD WITH THREE 11.625 INCH RIFLE LENGTH NM TRO MODULAR RAILSINCLUDES:BOLT CARRIER GROUP AND CHARGING HANDLE ASSEMBLY