Rock River Arms A4 Pistol Upper Half, .223/5.56 10.5″ Barrel

Description

10.5 INCH A4 UPPER HALF .223/5.56MM – WITH 10.5 INCH CHROME LINED BARREL

FOR PISTOL AND SBR APPLICATIONS ONLY – ALL NFA RULES APPLY.
CALIBER:5.56MM NATO CHAMBER FOR 5.56MM AND .223 CALIBER
UPPER RECEIVER:FORGED A4
BARREL:10.5-INCH CHROME LINED CHROME MOLY, 1:7 TWIST
GAS BLOCK:GAS BLOCK, RECEIVER HEIGHT SIGHT BASE
MUZZLE DEVICE:A2 FLASH HIDER / 1/2–28 THREAD
HANDGUARD:R4 HANDGUARD
INCLUDES:BOLT CARRIER GROUP AND CHARGING HANDLE ASSEMBLY
NOTE:FOR PISTOL AND SBR APPLICATIONS ONLY – ALL NFA RULES APPLY.