CMMG BBL 300BLK 16.1″ MR 4140CM SBN
$163.69
CMMG BBL 300BLK 16.1″ MR 4140CM SBN
7 in stock
Description
Perfect for building your custom AR15 upper group. Comes with properly installed M4 barrel extension. All barrel sub-assemblies are properly head spaced.
