Daniel Defense DDM4 ISR SBR, .300 Blackout, Mil-Spec+, No Magazine
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$4,352.00Original price was: $4,352.00.$4,047.00Current price is: $4,047.00.
Available on backorder
🚚 Not on our shelf today — order now to reserve yours, or send us a message for a current lead time. It ships to your local FFL as soon as it arrives.
FREE SUPPRESSOR WITH THIS GUNBuy this firearm and get a free Outlier Backdraft Hunter 4″ suppressor, a $189 value. In stock now, while supplies last. How it works →
Daniel Defense DDM4 ISR integrally suppressed short-barrelled rifle in .300 Blackout, Mil-Spec+ finish, supplied without a magazine. NFA-regulated firearm; transfer handled by Western Sport as an SOT.
Update, October 9, 2026: ATF no longer requires a Form 4, tax stamp, fingerprints or registration for suppressors, short-barreled rifles, short-barreled shotguns or AOWs. They now transfer on a standard Form 4473 with a background check. Anything below that mentions a Form 4, a wait or a tax stamp was written before this change. What changed
The Daniel Defense DDM4 ISR, part 02-103-15139-067, is an integrally suppressed NFA short-barrelled rifle in .300 Blackout in the Mil-Spec+ finish, and Daniel Defense supplies this part number with no magazine in the box.
Nothing is downgraded. It is the standard firearm with the magazine left out of the packaging, which is how Daniel Defense serves customers in jurisdictions that regulate magazine capacity. Order the standard Mil-Spec+ DDM4 ISR configuration instead if you do not need it. Capacity rules are set at state and local level and they change, so confirm the current requirements for your own jurisdiction first. Send us a message for help sourcing a compliant magazine, or see our magazine selection.
Barrel length, rail, weight and overall length:Send us a message to confirm for this part number
NFA-Regulated Firearm
The DDM4 ISR is integrally suppressed, which makes it an NFA-regulated firearm on more than one count. A BATFE tax stamp and an approved transfer are required, and the transfer must go through a dealer holding a Special Occupational Tax stamp. Western Sport is an SOT and a licensed FFL, and this firearm transfers through a licensed FFL. We state no wait times or tax amounts and will not speculate about how the suppressor portion is registered.
Ordering from Western Sport
Order online and we ship it to the licensed FFL dealer you choose near you — see how buying a gun online works. Western Sport has been a licensed FFL/SOT dealer since 2007, and everything we sell carries the full manufacturer warranty. Questions before you order? Send us a message.
Frequently Asked Questions
Q: What is the difference between this ISR and the black one?
A: The Mil-Spec+ finish. Both are the same integrally suppressed DDM4 ISR in .300 Blackout, and both are the no-magazine part number. If the exact shade of Mil-Spec+ matters to your build, send us a message and we will describe it before you commit.
Q: Is an integrally suppressed rifle treated differently from a threaded one?
A: The suppressor being integral is why this firearm is NFA-regulated on more than one count, alongside its short barrel. A BATFE tax stamp and an approved transfer through a dealer holding a Special Occupational Tax stamp are required. Western Sport is an SOT and a licensed FFL.
Q: Why does the Mil-Spec+ ISR come without a magazine?
A: Because Daniel Defense builds this part number for jurisdictions that regulate magazine capacity. Confirm your own rules before ordering and send us a message for help.
Q: Do you handle the registration process for me?
A: We handle the transfer as an SOT and licensed FFL, and that is what we will describe to you. We do not offer guidance on the registration process itself, and we state no wait times or tax amounts. Send us a message to discuss what happens on our side.
Q: What magazine capacity can I use with it?
A: Whatever your own state and locality currently permit, which is something to verify yourself since those rules differ and change. Once you know, send us a message and we will pair an AR-15/M16 pattern magazine of compliant capacity with the rifle at transfer.
Q: Will you publish the barrel length for this SKU?
A: Not until we have confirmed it against this exact part number. An integrally suppressed short-barrelled rifle is the last place to guess at a figure.
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