Daniel Defense DD4 RIIIS AR-15 5.56 NATO Upper Receiver - 11.5"

The Daniel Defense DD4 RIII Upper Receiver Group is a high-performance, precision-built AR-15 upper receiver that is perfect for your next SBR build. The upper receiver is made from 7075-T6 aluminum and features a MIL-SPEC 11.5" government profile barrel with a 1:7 twist rate and pinned low-profile gas block. The barrel is also chrome-lined and has a Mil-Spec heavy phosphate coating for extra durability. The upper receiver group comes with a Daniel Defense GRIP-N-RIP charging handle, a Daniel Defense flash suppressor, and a 10.5-inch RIS III rail. The RIS III rail is made from 6061-T6 aluminum and features M-LOK attachment points for mounting accessories. Each DD upper receiver includes an M16 profile bolt carrier group.

• 7075-T6 aluminum upper receiver, type III hard coat anodized
• 11.5" Gov't profile barrel with a 1:7 twist rate
• Chrome-lined barrel with heavy phosphate coating
• Carbine length gas system with pinned low profile gas block
• Daniel Defense flash suppressor muzzle device
• Daniel Defense GRIP-N-RIP charging handle
• 10.5" lightweight RIS III M-LOK rail
• M16 profile bolt carrier group
• Made in the U.S.A.

The Daniel Defense DD4 RIII Upper Receiver Group is a high-quality, precision-built AR15 upper receiver group that is built to the highest standards and features some of the best components available. If you are looking for a high-performance AR15 upper receiver, the Daniel Defense DD4 RIII 5.56 is a great option.