F Sons of Liberty Gun Works Threaded Barrel, 5.56 Chamber, 12.5in, Combat V2 Profile, Carbine Gas, 1/2x28, 1-7 Twist, QPQ, Black, 12.5COMBATV2-CHF-556 $284.05 125COMBATV2CHF556 show more like this Free Shipping on most orders over $49 Optics Planet