The Daniel Defense MK18 RIS II rail assembly is a free-float handguard in a flat dark earth finish, modeled on the 10.3-inch length used on the military MK18 carbine. Daniel Defense designed the RIS II for secure attachment with a robust barrel nut and a full-length top rail, along with side and bottom rails for accessories.

It is an option for building or upgrading a compact AR-15 and features Daniel Defense's reputation for tight tolerances and strong construction. Confirm barrel and gas system compatibility before installation.

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