Expertly crafted from aircraft grade aluminum CMMG® Mk4/AR15 upper receiver assemblies come with our ZEROED® Polymer Dust Cover pre-installed. This upper receiver omits the forward assist for those looking for a sleek and stylish base to start a new AR15 build.
-31%
CMMG UPPER RECEIVER ASSEMBLY M
$72.33 Save:$32.00(31%)
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