The Daniel Defense DD4 MK18 RIII is a short-barreled rifle designed for maneuverability and controlled handling in close-quarters environments. It is built around a cold hammer-forged 10.3-inch barrel and features the lighter-weight RIS III M-LOK rail system for flexible accessory mounting. The lower is fully ambidextrous, and the rifle is configured for use with threaded muzzle devices.
Key Specifications
- The manufacturer is Daniel Defense.
- The model is listed as DD4 MK18 RIII.
- The action is Semi-Auto.
- The cartridge is .223 Rem / 5.56 NATO.
- The barrel measures 10.3 inches and is cold hammer-forged.
- The barrel twist rate is 1-in-7.
- The rail system is the RIS III M-LOK platform.
- The gas system is Mid-Length.
- The lower receiver is fully ambidextrous.
- The muzzle is threaded 1/2×28 for compatible devices.
With compact geometry and purpose-driven components, the DD4 MK18 RIII is suited to applications that demand high maneuverability and accessory flexibility. Its cold hammer-forged barrel and modern M-LOK rail make it a practical choice for users who prioritize a robust, adaptable short-barreled platform backed by Daniel Defense engineering.
Product information is supplied by the manufacturer and/or distributor and may be automatically formatted or enhanced using AI for clarity and consistency. While we strive for accuracy, specifications, features, and included items may change without notice. Always verify details using the manufacturer’s official documentation and the information shown on this product page before purchase or use.
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