Perfect for building your custom AR15 upper group. Comes with a properly installed M4 barrel extension. All barrel sub-assemblies are properly headspaced.
5.56mm MT Barrel Sub-Assembly
CMMG
Gun Stuff/Rifle Parts/Barrels
$292.04
Your Price:
$194.06
CMMG-556MMMTBARRELSUBASSM
815835016160
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