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Upper Receiver Assembly, Mk3/.308WIN



AR Parts Notice - State/local restrictions may apply in CT, DC, IL, MA, NJ, NY, or WA. Customers must review our Shipping Policy prior to ordering.

Upper Receiver Assembly, Mk3/.308WIN

Start your AR10 upper build with looks and quality like no other. The CMMG® Mk3 upper receiver assembly, based on the DPMS LR308 gen1 high-pattern design, gives shooters an AR10-style platform with the widest range of compatible parts and accessories on the market. Each receiver comes with a CMMG ZEROED® Mk3 Polymer Dust Cover pre-installed and is available in your choice of seven different Cerakote finishes.


Lifetime Quality Guarantee

We aim to please, that’s why every CMMG product is backed by our Lifetime Quality Guarantee against material and workmanship defects. Learn More.

Technical Specifications

Platform Mk3
Upper Receiver Billet 7075 T6 Aluminum
Finish Cerakote Standard


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