Daniel Defense DDM4ISR – Mil Spec+


Caliber – .300 Blackout

Capacity – 32 + 1 Rounds

Barrel Length – 9″

Twist Rate – 1:8″

Suppressor Length – 7″

Muzzle Device – Pinned & Welded Suppressor

Overall Length – 31.5″ – 34.75″

Rail – 15″ Keymod

Weight – 7.57 lbs

2 in stock

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The DDM4ISR is a Integrally Suppressed AR15 style firearm optimized for the 300 Blackout cartridge. Built around a 9 inch Cold Hammer Forged barrel that is fluted along with a target crown and a standard pistol length gas system, this versatile, high-performance rifle is the complete package, accurately delivering both subsonic and supersonic projectiles downrange with unrelenting reliability. Because the suppressor is an integral part of the barrel, this firearm is ready for service right out of the box. There’s no attaching a suppressor and wondering if it’s mounted correctly and/or properly aligned. There’s no re-zeroing for suppressed vs. unsuppressed fire.

The DDM4ISR’s integral suppressor extends the barrel to an NFA-required 16 inches in length, so this platform is not classified as a Short Barreled Rifle (SBR) and therefore only requires a single tax stamp (for the suppressor). The suppressor’s lightweight outer tube is constructed of durable, heat-resistant metal alloys and coated with a protective high-temperature Cerakote-C finish, which is able of withstanding extreme temperatures and harsh environments. The suppressor is also user-serviceable, so its baffle core can be easily removed for periodic cleaning in order to maintain peak performance.

***All silencers require a federal Tax stamp and special paperwork. Please know your laws before purchasing.***

Additional information


Daniel Defense


.300 AAC Blackout


32 Rounds

Firearm Type