This is a CMMG chambered in 300 Blackout, model 30D810A.
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
Features:
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
