m4barreledupper_
M-4 Barreled Upper

M-4 Barreled Upper

Post and Pre-ban M-4 style Uppers

AR 15 barrel made from 4140 chrome-moly steel, 16” M-4 barrel is mounted on aircraft quality aluminum upper. Barrels are plated evenly with tough parkerized finish. Comes fully assembled (minus bolt/carrier and charging handle) with forward assist, ejection port cover assembly, gas tube assembly and heat shielded hand guards.  Now available in 1x9 or 1x7 twist rate.  Comes with M-4 feed ramps. Chambered in 5.56 NATO so it can fire both .223 and 5.56mm rounds.

M-4 Barreled upper pre ban

AR 15 M-4 barreled upper.

M-4 Barreled Upper 4150 Chrome Vandium steel

M-4 barrel made from 4150 Chrome Vanadium steel with a 1x7 twist barrel and M-4 feed ramps.