CMMG Mk4/AR-15 Upper Receiver Assembly Armor Black. Available in six 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. Specifications for CMMG Mk4/AR15 Upper Receiver Assembly: Manufacturer: CMMG Muzzle Device: No Finish: Cerakote Fabric/Material: Forged 7075-T6 Aluminum Gun Make: CMMG AR Platform Gun Model: CMMG Mk4 AR-15 Condition: New Magazine Included: No Package Contents: CMMG Mk4/AR15 Upper Receiver Assembly What firearm models does the manufacturer say CMMG Mk4/AR15 Upper Receiver Assembly is compatible with? The manufacturer says that CMMG Mk4/AR15 Upper Receiver Assembly is compatible with AR-15 CMMG Mk4CMMG 55BA290-AB: Mk4/AR-15 Upper Receiver Assembly Armor Black
Heckler & Koch MR762 A4 7.62x51mm NATO 13inch Upper Receiver Medium Contour Short Length 1-10 Twist 5/8x24 Threads Break Black Original price was: $3,049.00.$2,649.00Current price is: $2,649.00. 
Rock River Arms Forged A2 Stripped Upper Receiver Black Original price was: $216.99.$199.99Current price is: $199.99. CMMG Mk4/AR-15 Upper Receiver Assembly Armor Black
Original price was: $149.95.$144.79Current price is: $144.79.
