Build your custom AR15 upper group with this CMMG 300 Blackout rifle sub-assembly, featuring a 16.1 inch barrel. The M4 barrel extension comes properly installed, and all barrel sub-assemblies are properly head spaced.
AR15 Barrels
CMMG 300 Blackout 16.1 Inch Barrel Rifle Sub-Assembly
$202.00
CMMG 300 Blackout 16.1 inch barrel sub-assembly with pre-installed M4 barrel extension and factory head spacing for custom AR15 builds. Ready to assemble with all critical components properly fitted.
Availability: Only 2 left in stock
CMMG
| Weight | 3.5 lbs |
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| Dimensions | 20 × 2.5 × 2.5 in |
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