BCA AR-15 complete Upper Receiver , 18" 4150 PARKERIZED , .450 BUSHMASTER, , - $329.99

Description

16" 4150 CHROME MOLY VANADIUM STEEL BARREL

HEAVY BARREL PROFILE

1:24 TWIST RATE

CARBINE LENGTH GAS SYSTEM

.750 GAS BLOCK SYSTEM

.070 GAS HOLE DIAMETER

12" MLOK RAIL

.450 BUSHMASTER CALIBER

M4 FLAT TOP FORGED UPPER RECEIVER W/ FORWARD ASSIST

BOLT CARRIER GROUP

CHARGING HANDLES

BIRDCAGE FLASH HIDER