5.56mm NATO 20" replacement barrel, 1:8 twist, 41V50 Mil spec vanadium alloy
steel, fully machined and assembled with M4 extension, chromed bore and chamber for
optimum performance and durability, .750" gas block, designed for rifle length
gas system, drilled gas port, parkerized finish, muzzle thread 1/2 x 28
A2 FSB installed with taper pins
1 Review Hide Reviews Show Reviews
Everything about this barrel was right on and worked great! Thanks for a great product.