The Daniel Defense DDM4 PDW Pistol .300 Blackout (brand part no. 208822070047) is a compact AR-style pistol aimed at home and personal defense, with a 7-inch cold hammer forged barrel. Daniel Defense cuts the rifling at 1:7 so the barrel keeps subsonic loads subsonic and still delivers good ballistics from a short length. It comes equipped with the Maxim Defense CQB Pistol Brace, a 6-inch MFR XL M-LOK handguard and a Magpul PMAG 30 magazine. Overall length runs from 20 3/4 to 24 3/4 inches with the muzzle device.

Key Specifications

• Chambering is .300 Blackout, a cartridge designed to work with both subsonic and supersonic loads from short barrels.
• Barrel length is 7 inches, an ultra-compact length for tight quarters.
• Twist rate is 1:7, which supports both subsonic and supersonic loads.
• The barrel profile is S2W, Daniel Defense’s heavy barrel, which holds up through extended strings.
• The gas system is pistol-length direct impingement, matched to the short barrel.
• The brace is the Maxim Defense CQB Pistol Brace, with a Maxim Defense enhanced buffer system that cycles reliably suppressed or unsuppressed.
• The muzzle device is the Daniel Defense Linear Compensator, which directs muzzle blast forward of the shooter.
• The muzzle is threaded 5/8×24, which allows for muzzle device customization.
• The handguard is the MFR XL 6.0 M-LOK, with an SLR M-LOK MOD2 plain front handstop for a secure forward grip.
• The pistol includes a Magpul PMAG 30 AR 300 B GEN M3 magazine, which holds 30 rounds.

Frequently Asked Questions

What brace comes on the DDM4 PDW pistol? It comes equipped with the Maxim Defense CQB Pistol Brace, which gives the adjustments needed to shoot an AR pistol more comfortably.

Will it run with subsonic .300 Blackout loads? Yes. Daniel Defense designed the 7-inch, 1:7 twist barrel to keep subsonic loads subsonic while delivering good ballistics from a short barrel.

How long is the PDW overall? Overall length is 20 3/4 to 24 3/4 inches with the muzzle device, depending on the position of the brace.

Buy the Daniel Defense DDM4 PDW Pistol, .300 Blackout, 7-Inch Barrel, Maxim CQB Brace, 30-Round

Compact enough to store anywhere and built to run suppressed, the PDW pairs a short .300 Blackout barrel with a duty-grade brace system. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL, and check out more AR pistols in our catalog.