Pof-usa Barrel Ar-15 5.56 Nato – 16.5″ 1:8 Mid-length E2 Tech

Pof-usa barrel ar-15 5.56 nato 16.5″ 1:8 mid-length e2 tech

FEATURES:
-16.5″ barrel
-5.56 match chamber
-1:8 twist
-Nitride heat treated
-Mid-length configuration
-M4 feed ramps
-E² extraction technology
-5R rifling

Other Features: 4150 chrome vanadium steel, 5r rifling 1:8 twist, mid-length gas port, e2 extraction technology, nitride heat treated finish m4 feed ramps, fits all mil-spec uppers,.750 gas block diameter