ARES Defense MCR spare barrels are ready swap with your existing quick change barrel system. Barrels include adjustable gas system. Available in 16.25" or 12.5" lengths. Chambered in 5.56x45mm NATO & feature chrome lined, 1-7 twist bores. Muzzle include A2 flash hider & 1/2-28 threads. Fit ARES Defense MCR weapon systems only. Mfg: Fightlite Industries
