ARM-4 Barreled upper pre ban

M4PRBU
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  • Description

AR 15 ARM-4 barreled upper.

This M-4 style barreled upper comes standard with a 4140 chrome-moly steel barrel.  The 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 optional upgrade) with forward assist, ejection port cover assembly, gas tube assembly and heat shielded, oval shaped m-4 hand guards.