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Barrel Sub-Assm, 12.5" MR 4140CM SBN, 300 Blackout. Perfect for building your custom AR15 upper group. Comes with a properly installed M4 barrel extension. All barrel sub-assemblies are properly headspaced. All NFA rules apply. See linked CMMG Resource article for more information. All CMMG products come with our Lifetime Quality Guarantee.
Specifications
- Manufacturer:
- Cmmg
- Category:
- barrel
- Caliber:
- .300 AAC Blackout
- Platforms:
- AR-15
- Interfaces:
- AR-15 barrel nut patternMuzzle thread: 5/8-24
- Weight:
- 32 oz (2.00 lbs)
- Length:
- 12.5"
- Estimated velocity:
- 1,700-2,250 fps
- Required Component:
- Yes
Estimate only. Based on caliber + barrel length bucket. View details
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$187.49
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