Perfect for building your custom AR15 upper group. Comes with properly installed M4 barrel extension. All barrel sub-assemblies are properly headspaced. ALL NFA RULES APPLY
CMMG AR Rifle Barrel, 300 AAC Blackout, 8″ Barrel, 1:7Twist, Pistol Length Gas System, Nitride 30D810A
- 8.0″
- Medium Taper Profile
- 4140 Chrome Moly
- Salt Bath Nitride Finish inside and out
- 1:7 Twist
- 300 AAC Blackout Chamber
- Threaded 5/8-24
- Pistol length gas port
- .750 Gas Journal
