CMMG’s Barrel Sub-Assembly is ideal for building your custom AR-15 upper group. It comes with properly installed M4 barrel extension.
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CMMG 55DC70A Barrel Sub-Assembly 5.56x45mm NATO 16.10″ Black Nitride Finish 4140 Chromoly Steel Material Midlength with Medium Taper Profile for AR-15
SKU: ss_3187
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CMMG 55DC70A Barrel Sub-Assembly 5.56x45mm NATO 16.10″ Black Nitride Finish 4140 Chromoly Steel Material Midlength with Medium Taper Profile for AR-15
$146.02
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