Daniel Defense MK18 RIII Upper Receiver Group 5.56mm 10.3" FDE – Complete Drop-In Upper

The Daniel Defense MK18 RIII Upper Receiver Group delivers a complete, factory-assembled 5.56mm upper in Flat Dark Earth Cerakote.

• Type: Complete Upper Receiver Group
• Caliber: 5.56x45mm NATO
• Barrel Length: 10.3 inches
• Barrel Profile: Government, cold hammer-forged, chrome-lined
• Twist Rate: 1:7
• Gas System: Carbine-length
• Handguard: RIS III with M-LOK, 9.55" length
• Finish: Flat Dark Earth Cerakote
• Includes: Bolt carrier group, charging handle, flash suppressor
• Compatibility: Mil-spec AR-15 lower receivers
• Use: Close-quarters applications; NFA registration required for barrels under 16" when installed on a rifle lower