CMMG MK4/AR-15 Upper Receiver Assembly – Coyote Tan

Upgrade your AR-15 build with the CMMG MK4 Upper Receiver Assembly in Coyote Tan. Engineered to CMMG’s renowned standards of precision and reliability, this upper receiver assembly is a direct-fit solution for MK4 and standard AR-15 platform builds. The distinctive Coyote Tan finish adds a tactical aesthetic while providing an additional layer of corrosion resistance, making it well-suited for field use, custom builds, and range applications alike.

Whether you’re completing a new rifle build, replacing a worn component, or customizing your existing setup, this CMMG upper receiver delivers the consistent fit and finish that serious shooters expect. Compatible with standard AR-15 lower receivers, it’s a straightforward upgrade for builders at any experience level.

At Deep Roots Rifle Co, we stock hard-to-find AR-15 components from trusted manufacturers like CMMG, and our knowledgeable staff is ready to help you get the right parts for your build. Order online for fast shipping nationwide, or stop by our gun store in Eustis, Florida to see our full selection of AR-15 parts and accessories in person.