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CMMG Multi Role Profile Barrel Sub-Assembly 4140CM .300 AAC Blackout 12.5 Inch 5/8-24 Threads Salt Bath Nitride Finish

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

  • 12.5
  • Multi Role 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
Manufacturer
CMMG
Model
30D8A0A
UPC
815835016276
Caliber
300 AAC Blackout
Unit/Measure
ea
Stock
0
Availability Out of stock