Barrel Sub-Assm, 12.5" MR 4140CM SBN, 300 BLK
Perfect for building your custom AR15 upper group. Comes with a properly installed M4 barrel extension. All barrel sub-assemblies are properly headspaced.
CMMG, 12.5" MR 4140CM SBN Barrel, 300 BLK, Fits AR-15 Rifle
- Brand: CMMG
- Product Code: CMMG-30D8A0A
- Availability: In Stock
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$196.99 USD