Description
The CMMG Mk4/AR15 Upper Receiver Assembly in Armor Black is expertly crafted from durable aircraft grade aluminum. Designed for those who appreciate a sleek and stylish look, this upper receiver omits the forward assist, making it perfect for a streamlined AR15 build. It comes with a ZEROED® Polymer Dust Cover pre-installed, ensuring your firearm is protected and ready for action. Elevate your shooting experience with this high-quality upper receiver assembly from CMMG.


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