Built for reduced-signature operations and rapid deployment, the Daniel Defense DDM4 ISR integrates a user-serviceable suppressor into a 16-inch, NFA-compliant platform. Engineered to maintain point-of-impact between suppressed and unsuppressed firing, the system eliminates the need to re-zero when switching configurations. Ruggedized materials and a Mil-Spec+ finish preserve functionality in harsh environments. Configured for .300 AAC Blackout with an extended-capacity magazine for sustained field use.

Key Specifications

• .300 AAC Blackout — integrally suppressed chambering supporting both subsonic and supersonic loads with consistent terminal performance.
• 16 in barrel (NFA-compliant) — integral suppressor extends the barrel to a 16-inch overall length to meet NFA barrel-length requirements without an SBR classification.
• Integral 17-4PH monolithic baffle, user-serviceable — suppressor baffle core is removable for maintenance to preserve performance over service life.
• 32 rounds — single 32-round Daniel Defense magazine included for extended on-target time between reloads.
• Semi-Auto — Milspec semi-automatic operating system for established reliability and parts commonality.
• 7075 Aluminum — primary receiver/component construction for high strength-to-weight and structural integrity.
• Mil-Spec+ Cerakote — high-temperature protective finish on suppressor outer tube and components for environmental resistance.
• 7.6 lbs. — system weight allowing maneuverability while retaining stability for rapid follow-up shots.
• 1-in-8″ rate of twist — barrel twist rate compatible with a wide range of .300 AAC Blackout projectiles.
• Integral NFA attachment method — suppressor is a built-in component of the barrel assembly for repeatable alignment and zero.

Mission Brief: The DDM4 ISR puts suppression, durability, and magazine capacity into a single, NFA-compliant platform. Its user-serviceable integral baffle, mil-spec materials, and consistent POI between suppressed and unsuppressed fire streamline logistics and reduce setup time, making it a practical tool for operators who require a rugged suppressed .300 BLK solution that integrates directly into the rifle system.