Description

The Daniel Defense DDM4 MK18 SBR is a semi-automatic short-barreled rifle chambered in .223 Rem/5.56 NATO. It is built on a CNC-machined 7075-T6 aluminum receiver and finished in matte black anodize. The rifle includes a Daniel Defense RIS II handguard, Daniel Defense stock and grip furniture, and ships with one 32-round Daniel Defense magazine. The barrel is a 10.3″ cold hammer-forged, chrome-lined design with a 1:7 twist.

Key Specifications

• The caliber is .223 Rem/5.56 NATO.
• The barrel length is 10.3 inches and features a cold hammer-forged, chrome-lined bore.
• The rate of twist is 1-in-7.
• The action is Semi-Auto.
• The magazine capacity is 32 rounds.
• The handguard is a RIS II rail system by Daniel Defense.
• The receiver is CNC-machined 7075-T6 aluminum.
• The finish is Matte Black Anodized.
• The stock and grip are Daniel Defense furniture.
• The barrel thread pattern is 1/2×28.

Purpose-built for compact handling and reliability, the MK18 SBR pairs a short, durable barrel with service-grade components and a modular rail system. Its compact profile and robust construction suit tight environments and applications that demand dependable, repeatable performance. Manufactured in the U.S. with Daniel Defense components, this MK18 configuration emphasizes durability and straightforward operation.