Daniel Defense MK18 RIII URG 5.56mm 10.3-Inch Upper

Description

The Daniel Defense MK18 RIII URG is an AR-15 upper configured for rifle building and upgrades. Its 10.3-inch threaded barrel, RIS III M-LOK rail and carbine-length gas system provide a compact platform with the listed features ready for installation.

Key Specifications

• The .223 Rem/5.56 NATO chambering supports the listed cartridge specifications.
• A 10.3-inch barrel provides the compact length specified for this upper.
• The threaded barrel accommodates compatible accessories using the listed interface.
• The 1/2×28 thread pattern identifies the barrel’s specified thread interface.
• The FDE RIS III 9.5-inch M-LOK rail provides the listed mounting system and rail length.
• A carbine-length gas system matches the upper’s specified operating configuration.
• The GRIP-N-RIP charging handle is included as a listed feature.
• The 1-in-7 rate of twist is the specified rifling twist.
• No sights are included, leaving sight selection to the builder.

This upper suits builders and shooters looking for a compact AR-15 configuration with a defined rail, gas system, charging handle and barrel interface. Its straightforward feature set keeps the focus on platform compatibility and component selection.

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