Daniel Defense MK18 10.3" Complete Upper Receiver Group (5.56 NATO) with RIS II Quad Rail
The Daniel Defense MK18 Upper Receiver Group features a 10.3" cold hammer forged Chrome Moly Vanadium barrel with a 1:7 twist and government profile. The pinned low-profile gas system is carbine length (direct impingement), and the handguard is the Daniel Defense RIS II MK18 picatinny quad rail.
This complete upper includes a Daniel Defense M16-profile bolt carrier group and a Daniel Defense charging handle. A rail-mounted vertical grip is installed.