Caliber/Gauge
223 Rem
Barrel Length
12.5"
Color
Black
Perfect for building your custom AR15 upper group. Comes with properly installed M4 barrel extension. All barrel sub-assemblies are properly headspaced.
5.56x45 NATO Chamber
12.5"
Multi Role Profile
4140 Chrome Moly
Salt Bath Nitride Finish inside and out
1:7 Twist
Threaded 1/2-28
Carbine length gas port
.750" Gas Journal
5.56x45 NATO Chamber
12.5"
Multi Role Profile
4140 Chrome Moly
Salt Bath Nitride Finish inside and out
1:7 Twist
Threaded 1/2-28
Carbine length gas port
.750" Gas Journal
