Description
The Daniel Defense MK18 RIII URG is an upper receiver group designed for compact AR configurations. It is listed for .223 REM/5.56 NATO and features a short Government-length barrel for a compact overall profile. The upper includes a RIS III M-LOK rail and a carbine-length gas system, and it ships with a threaded muzzle for common 1/2×28 devices. Features such as the GRIP-N-RIP charging handle are part of the factory configuration.
Key Specifications
The product type is Accessory-Uppers.
The caliber is .223 REM/5.56 NATO.
The barrel length is listed as 10.3 Government.
The rate of twist is 1-in-7.
The rail is a FDE RIS III 9.5 M-LOK Rail.
The gas system is a Carbine Length Gas System.
The NFA thread pattern at the muzzle is 1/2×28.
Included additional features list a GRIP-N-RIP Charging Handle.
The upper is noted as having a Threaded Barrel as a special feature.
The listed weight is 4.5.
Built around a short Government-profile barrel and a proven RIS III M-LOK handguard, this MK18 RIII URG upper is intended for compact builds where maneuverability and a short overall length are priorities. Its factory-configured features make it a practical choice for users assembling a compact AR platform that relies on established components and modular accessories.
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