CMMG Mk4/AR15 Upper Receiver Assembly w/Forward Assist

Whether its the classic style or forward assist functionality that piques your interest, the Mk4 AR15 upper receiver assembly has been a staple in the CMMG lineup. Available in six different Cerakote finishes, this mil-spec workhorse has been proven over the years and makes a great base to build your next AR15 upper group. Specifications for CMMG Mk4/AR15 Upper Receiver Assembly w/Forward Assist: Manufacturer: CMMG Barrel Profile: M4 Fabric/Material: 7075 T6 Aluminum Gun Make: CMMG Gun Model: CMMG Mk4 Condition: New Magazine Included: No Package Contents: CMMG Mk4/AR15 Upper Receiver Assembly w/Forward Assist