Description
Barrel Assembly, 12.5″ MR 4140CM SBN, 5.56mm, w/LPGB
Perfect for building your custom AR15 upper group. Comes with properly installed M4 barrel extension, barrel nut, .750 lo-pro gas block, hand guard cap, pinned “F” marked front sight base, sling loop, and front sight post. All barrel assemblies are properly headspaced.
Description:
- 12.5″
- Multi Role Profile
- 4140 Chrome Moly
- Salt Bath Nitride Finish inside and out
- 1:7 Twist
- 5.56×45 NATO Chamber
- Threaded 1/2-28
- Carbine length gas port
- .750″ Gas Journal
- .750″ Lo-Pro Gas Block
- “F” Marked Front Sight Base