Barrel Sub-Assembly - 18? Bull 416SS, 5.56mm

Barrel Sub-Assembly - 18? Bull 416SS, 5.56mm
Manufacture ID: 55D630B

Perfect for building your custom AR15 upper group, the Bull profile improves shot to shot consistancy during long strings. Every barrel comes with properly installed M4 barrel extension. All barrel sub-assemblies are properly headspaced.

Specifications:

- Caliber: 5.56e45 NATO Chamber
- Length: 18?
- Profile: Bull
- Material: 416SS
- Finish: Bead Blasted
- Twist: 1:7
- Gas Port: Mid length
- .936" Gas Journal