
The Daniel Defense MK18 RIII URG is a complete upper receiver built around a 10.3 in Government-profile 5.56mm NATO/.223 Rem barrel for a compact, carbine-length gas setup. It features the 9.5 in RIS III M-LOK rail for mounting accessories and is supplied with a GRIP-N-RIP charging handle, ready for you to integrate with your preferred lower.
Key features
- 10.3 in Government-profile barrel with 1-in-7 in twist for stabilized 5.56mm NATO performance
- Carbine-length gas system for a compact MK18-style configuration
- 9.5 in RIS III M-LOK rail for modular accessory mounting
- 1/2x28 threaded muzzle for common compatible muzzle devices
- GRIP-N-RIP charging handle included
- Matte Black finish for a low-glare exterior
Add the Daniel Defense MK18 RIII URG upper to your build for a dependable, compact setup with a modular M-LOK rail and a threaded 10.3 in barrel.



