CMMG Mk4/AR15 Upper Receiver Assembly with Forward Assist- Armor Black Cerakote

Whether it’s 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:

• Platform: MK4/AR-15
• Upper receiver: forged 7075-t6 Aluminum M4 type
• Finish: Armors Black cerakote standard