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 M4 16'' Barrel Sub-assembly
CMMG
Gun Stuff/Rifle Parts/Barrels
MSRP:
$295.16
$205.93
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$89.23
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CMMG-55DE10A
815835014067
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