Rock River Arms CMP National Match Upper 223/5.56 20″ CRYO Treated Barrel, 12.5″ Free Float Rail

Description

NM A4 20 INCH CMP UPPER HALF (2016) .223/5.56MM
CALIBER:.223 WYLDE CHAMBER FOR 5.56MM AND .223 CALIBER
UPPER RECEIVER:FORGED A4
BARREL:20-INCH AIR GAUGED HEAVY MATCH STAINLESS STEEL, 1:8 TWIST, CRYOGENICALLY TREATED
MUZZLE DEVICE:A2 FLASH HIDER / 1/2–28 THREAD
GAS BLOCK:GAS BLOCK SIGHT BASE
HANDGUARD:RRA NM CMP TRO ALUMINUM 12.5 INCH RIFLE LENGTH FREE FLOAT HANDGUARD WITH THREE 11.625 INCH RIFLE LENGTH NM TRO MODULAR RAILS
INCLUDES:RRA CHROME BOLT CARRIER GROUP AND CHARGING HANDLE ASSEMBLY