CMMG Upper Receiver Assembly, Mk4/AR15
Expertly crafted from aircraft grade aluminium, CMMG Mk4/AR15 upper receiver assemblies come with our ZEROED Polymer Dust Cover pre-installed. Available in seven different Cerakote finishes, this upper receiver omits the forward assist for those looking for a sleek and stylish base to start a new AR15 build.
PCC Compatibility
Featuring an enlarged ejection port, the CMMG Mk4 upper receiver can accommodate a variety of pistol calibers like 9mm, 10mm, .40 S&W, and .45 ACP and is compatible with CMMG MkG, MkGs, Mk10, Mk9, and Mk17 lower receivers. NOTE: This upper is not compatible with CMMG fixed ejector Radial Delayed Blowback BCGs.
Specification
- Platform Mk4
- Upper Receiver Billet 6061 T6 Aluminum
- Finish Cerakote Standard
Shipping Methods
Collection/On-Site Service
Collect your order from our premises in Hampshire or a Blue RPC club shoot. Have a chat with us and a browse whilst you're here!
Royal Mail/Parcel Force 24
Despatched same working day if ordered before 15:00, with next day delivery aim.
International Shipping
Despatched same working day if ordered before 15:00 GMT. Our website automatically detects what country you are in, so if it lets you order it then we can ship there!
Firearms and Ammunition
See the RFD Transfer and Club Collection page for more details.