FN AR-15 5.56x45mm NATO 16" M4 Profile Carbine Length Gas System Barrel, Black Phosphate - 20100047

FN AR-15 barrel chambered in 5.56x45mm NATO with a 16" carbine length gas system and M4 profile. Features cold hammer forged construction with chrome lining and black phosphate finish for corrosion resistance and durability. Direct drop-in replacement for standard AR-15 platforms.