Daniel Defense DDM4 ISR SBR, .300 Blackout, Black, No Magazine
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Home » Shop » Daniel Defense DDM4 ISR SBR, .300 Blackout, Black, No Magazine
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$4,142.00Original price was: $4,142.00.$3,852.00Current price is: $3,852.00.
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🚚 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, black, supplied without a magazine. An NFA-regulated firearm transferred through Western Sport as a licensed FFL and 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 02-103-02041-067, is an integrally suppressed NFA short-barrelled rifle in .300 Blackout on the AR-15/M16 platform, finished in black and supplied by Daniel Defense without a magazine.
Daniel Defense tracks this as a separate SKU purely for what is left out; the firearm is built the same way on the same line. Buyers choose it when capacity is regulated where they live and the magazine must come from a local source. Order the standard black DDM4 ISR configuration instead if you do not need it. Capacity rules are jurisdiction-specific and subject to change, so confirm what applies where you are. 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 does ISR mean on this Daniel Defense rifle?
A: ISR is Daniel Defense’s Integrally Suppressed Rifle configuration, meaning the suppressor is part of the firearm rather than an accessory threaded on afterwards. That is why it is an NFA-regulated firearm on more than one count and why the transfer runs through an SOT dealer.
Q: Why is the DDM4 ISR regulated on more than one count?
A: Because it is both a short-barrelled rifle and an integrally suppressed firearm. Either characteristic alone brings a firearm under the National Firearms Act. A BATFE tax stamp and an approved transfer through a Special Occupational Tax stamp holder are required, and Western Sport is an SOT.
Q: How is the suppressor portion registered?
A: We will not speculate on that. What we can tell you is that the DDM4 ISR is an NFA-regulated firearm and that Western Sport, as a licensed FFL and SOT, handles the transfer.
Q: What does the no-magazine ISR configuration change?
A: Only that no magazine is packed with the firearm. Everything mechanical about the rifle, the suppressor included, matches the standard configuration exactly.
Q: What magazines will the ISR accept?
A: It is an AR-15/M16 pattern firearm, so magazines for that pattern are the starting point, with capacity governed by your own state and locality.
Q: Can you confirm the barrel length and weight?
A: By phone, yes. We will not publish a barrel length or weight for this part number that we have not verified against the exact SKU, because a wrong number on an NFA firearm is a real problem.
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