Daniel Defense | M4A1 RIII URG | 5.56MM 14.5in

The Daniel Defense M4A1 RIII URG is an AR-15 upper receiver assembly configured for .223 REM/5.56 NATO. It ships with a 14.5in M4-profile barrel and a RIS III 12.5″ M-LOK rail for modern accessory mounting. This upper includes a pinned and welded flash hider and a GRIP-N-RIP charging handle, and it is supplied without iron sights. The design suits range use and competition applications that require a compact 14.5in barrel package.

Product Specifications

• The manufacturer is Daniel Defense.
• The model is listed as M4A1 RIII URG.
• The caliber/gauge is .223 REM/5.56 NATO.
• The barrel length is listed as 14.5″ M4.
• The listed rate of twist is 1-in-7″.
• The rail is a FDE RIS III 12.5″ M-LOK Rail.
• The flash hider is pinned/welded.
• The charging handle is a GRIP-N-RIP Charging Handle.
• Sights are specified as No Sights.
• The listed weight value is 5.05 (unit not specified in source data).
• The country of origin is US.
• The product type is Accessory-Uppers.
• The UPC is 818773023009.

This upper pairs established Daniel Defense quality with a compact 14.5in barrel package and a M-LOK-equipped RIS III rail, delivering a versatile platform for range work and competitive stages. Its pinned/welded flash hider and robust charging handle make it suitable for shooters seeking a ready-to-configure upper that accepts a wide range of optics and accessories.