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

Product Description

The Daniel Defense DDM4 PDW, part 02-088-04228-067, is an NFA short-barrelled rifle in 300 Blackout with a 7-inch S2W profile barrel in the Cobalt finish, and Daniel Defense ships this part number with no magazine in the box.

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 DDM4 PDW 300 Blackout configuration instead if you do not need it. We do not advise on any jurisdiction’s law: confirm the magazine rules applicable where the firearm will be kept. Call 817-393-4000 for help sourcing a compliant magazine, or see our magazine selection.

Key Facts

• Model: DDM4 PDW
• Manufacturer Part Number: 02-088-04228-067
• Legal category: NFA short-barrelled rifle
• Caliber: 300 BLK
• Barrel: 7″, S2W profile, 1:7 twist, Cold Hammer Forged, Chrome Moly Vanadium Steel, Mil-Spec Heavy Phosphate Coated
• 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
• Configuration: Supplied without a magazine

NFA Short-Barrelled Rifle

Because the barrel is below the rifle threshold this is an NFA short-barrelled rifle, requiring a BATFE tax stamp and an approved transfer through a Special Occupational Tax stamp holder. Western Sport is an SOT and a licensed FFL, and every firearm here transfers through a licensed FFL. We publish no wait times or tax amounts and no registration guidance.

Ordering from Western Sport in Roanoke, TX

Western Sport has served DFW and North Texas since 2007 as a licensed FFL, SOT and Daniel Defense master dealer, gunsmith on site. Call 817-393-4000.

Frequently Asked Questions

Q: Is the Cobalt DDM4 PDW mechanically different from the other finishes?

A: No. Finish is the only variable. It is the same 7-inch 300 Blackout S2W barrel, pistol-length gas system, MFR XL 6.0 rail and Maxim Defense CQB Gen 7 stock as the other PDW short-barrelled rifle part numbers, and this SKU is the one supplied without a magazine.

Q: What magazine does Daniel Defense specify for the PDW?

A: The Magpul PMAG 30 AR 300 B GEN M3 is the magazine for this configuration. Because this part number arrives without one, you source a magazine locally instead. Check what capacity your jurisdiction currently permits, then call 817-393-4000 and we will help you land on something compliant.

Q: Does the missing magazine change the tax stamp requirement?

A: Not in the slightest. The short barrel is what makes this an NFA firearm, so a BATFE tax stamp and an approved transfer through a Special Occupational Tax stamp holder are required either way. Western Sport is an SOT. We give no wait times and no tax figures.

Q: What is the S2W profile on the PDW barrel?

A: S2W is Daniel Defense’s proprietary Strength-to-Weight heavy barrel profile. On a 7-inch 300 Blackout barrel it puts material where rigidity and heat capacity matter without much weight penalty, which is part of why the whole short-barrelled rifle comes in at 5.7 lbs.

Q: Why does the PDW use a linear compensator?

A: A linear compensator directs muzzle blast forward rather than out to the sides, which matters a great deal on a 7-inch barrel where blast and concussion are otherwise punishing for the shooter and anyone beside them. It threads onto the 5/8 x 24 TPI muzzle.

Q: Can Western Sport handle the transfer on this one?

A: Yes. Western Sport is a licensed FFL and an SOT in Roanoke, Texas, which is what a short-barrelled rifle transfer requires, and every firearm we sell moves through a licensed FFL. Call 817-393-4000 and we will explain what the transfer involves on our side.

Additional information