Daniel Defense DDM4 PDW AR-15 Pistol, 7-Inch .300 Blackout, CHF Barrel, Maxim CQB Brace
Built for maximum maneuverability without giving up Daniel Defense reliability, this DDM4 PDW delivers a compact 7-inch cold-hammer-forged barrel, ambidextrous controls, and a robust Maxim Defense CQB brace in a purpose-built personal-defense package. Chambered in versatile .300 AAC Blackout and finished in hard-coat anodized black, it blends battle-proven materials with modern ergonomics for shooters who need rifle performance in pistol dimensions.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Condition: Excellent – Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling – Sharp lands and grooves.
Specific Condition Notes: This PDW displays minimal signs of use, with only light handling evidence visible upon close inspection.
What's Included
- Daniel Defense DD4/DDM4/DD5 manual packet
- Spare buffer spring (factory bagged)
- Polymer angled fore-grip (installed)
- Daniel Defense hard plastic rifle case
- Daniel Defense 32-round polymer magazine
The 7-inch S2W (Strength-to-Weight) barrel is cold-hammer-forged from 4150 CMV steel, chrome-lined, and capped with a Daniel Defense linear compensator on 5/8-24 threads. Combined with a pistol-length gas system, it delivers reliable cycling and optimal velocity in a very short profile.
Daniel Defense’s free-float MFR XL 6.0 M-LOK handguard offers a rigid mounting surface, full-length top rail alignment, and ample attachment slots while keeping overall weight low. The heavy profile barrel sits fully floated for repeatable accuracy.
Ambidextrous controls include the GRIP-N-RIP charging handle and bilateral safety selector, giving both-handed shooters intuitive operation. The two-rod Maxim Defense CQB brace adjusts for length and houses a proprietary buffer system tuned to the PDW’s short gas setup.
Upper and lower receivers are machined from 7075-T6 aluminum and protected by Type III hard-coat anodizing. Every component is built in Black Creek, Georgia, underscoring Daniel Defense’s all-American manufacturing pedigree.
With its compact footprint, 32-round magazine, and .300 BLK chambering, this DDM4 PDW is ready for suppressed work, home defense, or any role where rifle capability and pistol size must meet.



