Daniel Defense DD4 RIIIS, Complete Upper Receiver, 556NATO, 11.5 in Barrel, 1:7 Twist, Daniel Defense RIS III 10.5 in Handguard, M16 Profile Bolt Carrier Group, Anodized Finish, Black/Flat Dark Earth 23-191-02397-011

Overview

The Daniel Defense DD4 RIIIS is a complete upper receiver group featuring an 11.5-inch cold hammer-forged government profile barrel with a 1:7 twist rate, chrome-lined bore, and a Mil-Spec phosphate finish. The assembly utilizes a carbine-length gas system with a pinned, low-profile gas block and includes a Daniel Defense flash suppressor with a salt bath nitride finish. Housed in an anodized Flat Dark Earth receiver, the setup includes a 10.5-inch lightweight RIS III handguard featuring M-LOK attachment points for modular accessory mounting. Included with the upper is an M16 profile bolt carrier group, which is Mil-Spec, magnetic particle (MP) tested, and chrome-lined with a properly staked gas key. A GRIP-N-RIP charging handle is also provided to complete the assembly. The receiver is CNC machined from 7075-T6 aluminum and features indexing marks and M4 feed ramps.

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