Daniel Defense - MK18 Upper Receiver Group

Daniel Defense MK18 AR15 style Upper Receiver Group 23-004-08013-011 is unmatched in size, weight, and performance, and features the picatinny quad rail Daniel Defense provides to USSOCOM. The RIS II rail features a Bolt-Up System that has been rigorously tested prior to fielding by USSOCOM. The 10.3 inch Cold Hammer Forged barrel is the same length in use for the MK18 upper most commonly used for CQB operations. Its independently ambi GRIP-N-RIP Charging Handle accommodates left- and right-handed shooters. All Daniel Defense complete upper receiver groups come standard with an M16 profile bolt carrier group.

Notable Features Include:

• Mil-Spec with Indexing Marks and M4 Feed Ramps Upper Receiver
• Chrome Moly Vanadium Steel Barrel, Cold Hammer Forged, 1:7 Twist, 10.3" Government Profile
• Pinned Low Profile Gas Block CNC Machined of 4140 hardened steel with Mil-Spec Heavy Phosphate Coating, Carbine Length, Direct Impingement
• Daniel Defense Flash Suppressor Muzzle Device, 17-4 PH Stainless Steel, Salt Bath Nitride Finished
• M16 Profile BCG, Mil-Spec MP Tested, Chrome Lined, Properly Staked Gas Key
• Daniel Defense RIS II MK18 Hnadgaurd, CNC Machined of 6061-T6 Aluminum, Type III Hard Coat Anodized
• GRIP-N-RIP Charging Handle
• Daniel Defense Rail Panels Made from Santoprene, Heat Resistant to 300° F.