This Daniel Defense DD4 RIII upper receiver group is a complete 5.56 NATO upper with an 11.5-inch barrel in flat dark earth, ready to drop onto a compatible lower. Daniel Defense built its name on cold hammer forged, chrome-lined barrels and free-floating rails machined to tight tolerances, and the RIII handguard is the current generation with M-LOK attachment throughout. An 11.5-inch barrel is the classic short configuration, compact for vehicle and indoor work while still cycling reliably. Because an upper receiver group is not a firearm, it ships directly to you. Confirm your local rules on barrel length and configuration before building.

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