New Frontier Ar15 Barrel - 12.5" 1:7 5.56 Blk

New frontier ar15 barrel 12.5" 1:7 5.56 blk

FEATURES
-Caliber: 5.56mm/2.23
-Twist: 1:7"
-12.5" Barrel

Other Features: 1:7 twist, uses.750 gas blocks, pistol-length gas system, m4 barrel extension, chrome-moly