The Daniel Defense MK18 upper receiver group is a complete, ready-to-install upper for AR-15 style rifles, chambered in 5.56 NATO. It is based on the MK18 configuration, with a short 10.3-inch barrel, and includes a RIS II rail handguard in a flat dark earth finish. Daniel Defense is one of the most respected names in the AR market, known for cold-hammer-forged barrels and duty-grade quality. Note that short-barreled uppers must be installed only on an appropriate lower per federal and state law, so check your local regulations.

In stock and ready to ship straight to your door from Dawson Defense, an Arizona-owned licensed dealer.