Perfect for building your custom AR15 upper group. Comes with a properly installed M4 barrel extension. All barrel sub-assemblies are properly headspaced.
300BLK MT Barrel Sub-Assembly
CMMG
Gun Stuff/Rifle Parts/Barrels
$258.90
Your Price:
$172.99
CMMG-300BLKMTBARRELSUBASSM
815835016283
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