The Daniel Defense DDM4 ISR (brand part no. 02-103-02041) is a .300 AAC Blackout integrally suppressed rifle built around a 16-inch barrel with a 1-in-8 twist rate, combining a legal-length rifle barrel with a built-in suppressor system into a single semi-automatic platform. Daniel Defense finishes the DDM4 ISR in black and configures it for a 32-round capacity, with no sights included so shooters can mount their own optic. The DDM4 ISR favors shooters who want an integrally suppressed rifle without the added complexity of a separate can and mount.

Key Specifications

• Chambered in .300 AAC Blackout for suppressed centerfire performance.
• Wears a 16-inch barrel integrated with the suppressor system.
• Cut with a 1-in-8 twist rate.
• Feeds from a 32-round capacity configuration.
• Measures 34.75 inches overall.
• Ships with no sights, ready for the shooter’s optic of choice.
• Operates as a semi-automatic action.
• Finished in black.

Frequently Asked Questions

Is this an NFA item? Yes. As a suppressed firearm, it's a Title II firearm requiring an approved ATF Form 4 and transfer through an NFA-licensed dealer.

What caliber does it fire? .300 AAC Blackout.

Can the suppressor be removed or swapped to another rifle? No — the DDM4 ISR is an integrally suppressed rifle. Its suppressor baffles are permanently built into the 16-inch barrel, not a separate can that threads or clamps on and off.

Buy the Daniel Defense DDM4 ISR

This is a Title II item regulated under the National Firearms Act. Purchase requires an approved ATF Form 4, no federal transfer tax and transfer through a licensed NFA (SOT/Class 3) dealer, with an extended federal approval wait before delivery. Order through Daniel Defense‘s silencers and suppressed firearms lineup and our Lubbock, Texas team will walk you through the transfer process.