Daniel Defense DDM4 PDW SBR, .300 Blackout, FDE, No Magazine

Product Description

The Daniel Defense DDM4 PDW, part 02-088-03085-067, is an NFA short-barrelled rifle in 300 Blackout with a 7-inch S2W profile barrel and a Flat Dark Earth finish, supplied by Daniel Defense without a magazine.

The only difference from the standard part number is that no magazine is packed with it. Daniel Defense builds the configuration for customers whose jurisdictions regulate capacity, where the local dealer fits a compliant magazine instead. Order the standard FDE DDM4 PDW configuration instead if you do not need it. Limits vary by state and by city or county and do change, so check what currently applies in your jurisdiction. Send us a message for help sourcing a compliant magazine, or see our magazine selection.

Key Facts

• Model: DDM4 PDW
• Manufacturer Part Number: 02-088-03085-067
• Legal category: NFA short-barrelled rifle
• Caliber: 300 BLK
• Barrel: 7″, S2W profile, 1:7 twist, Cold Hammer Forged
• Gas system: Pistol length
• Muzzle: Daniel Defense Linear Compensator, 5/8 x 24 TPI thread
• Rail: Daniel Defense MFR XL 6.0 M-LOK
• Stock: Maxim Defense CQB Gen 7
• Weight: 5.7 lbs
• Overall length: 21″ – 25 1/2″ with muzzle device
• Configuration: Supplied without a magazine

NFA Short-Barrelled Rifle

This part number is an NFA-regulated short-barrelled rifle and cannot change hands without a BATFE tax stamp and an approved transfer through a dealer holding a Special Occupational Tax stamp. Western Sport is an SOT and a licensed FFL; transfer through a licensed FFL is required. We state no wait times or tax amounts, and give no registration guidance.

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: Which magazine is this DDM4 PDW built around?

A: Daniel Defense specifies the Magpul PMAG 30 AR 300 B GEN M3 for this configuration, which is why the no-magazine SKU exists: in capacity-regulated jurisdictions that magazine may not be the right one. Confirm your local rules, then Send us a message for help choosing a compliant alternative.

Q: Why a 7-inch barrel in 300 Blackout rather than 5.56?

A: The 7-inch 300 Blackout Cold Hammer Forged barrel keeps subsonic loads subsonic and delivers usable ballistics from a very short tube, which 5.56 does not do well at that length. It is the reason the PDW is chambered this way rather than for a shorter 5.56 build.

Q: Does leaving the magazine out affect the NFA paperwork?

A: No. This remains an NFA short-barrelled rifle requiring a BATFE tax stamp and an approved transfer through a dealer holding a Special Occupational Tax stamp, and Western Sport holds an SOT. The magazine is a separate matter entirely. We state no wait times or tax amounts.

Q: What thread pitch is the muzzle on the PDW?

A: The muzzle is threaded 5/8 x 24 TPI, which is the usual pitch for 300 Blackout, and it wears a Daniel Defense Linear Compensator from the factory.

Q: What does the Maxim Defense CQB Gen 7 stock add?

A: It is the collapsing stock Daniel Defense fits to the PDW short-barrelled rifle, and it is a large part of why overall length runs from 21 to 25 1/2 inches with the muzzle device. That range is what makes the PDW practical for vehicle and close-quarters storage.

Q: How light is this configuration?

A: Weight for the PDW short-barrelled rifle is 5.7 lbs, helped by the 6-inch MFR XL M-LOK rail and the short barrel. Add an optic, a light and a loaded magazine and expect a meaningful increase over that bare figure, so set your expectations accordingly.