Daniel Defense DDM4 PDW .300 AAC Blackout AR Pistol, 7 in CHF S2W Barrel, MBUS Sights, Maxim Defense CQB Brace
This DDM4 PDW is a compact, purpose-built AR-15 pattern pistol chambered in .300 AAC Blackout. It features a 7.0 in cold-hammer-forged S2W barrel with a 1:7 twist, a pistol-length direct-impingement gas system, and a factory linear compensator. The Daniel Defense MFR XL 6.0 free-float handguard with M-LOK slots and a T-marked Picatinny top rail, paired with installed Magpul MBUS sights and a Maxim Defense CQB adjustable brace, deliver a well-sorted, ready-to-run PDW configuration.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Inspection notes indicate minimal prior use.
What's Included
- Daniel Defense hard case
- Daniel Defense DD4/DDM4/DD5 Firearms Safety Manual
- Cable lock
- Magpul MBUS polymer flip-up front and rear sights (installed)
- M-LOK handstop (installed)
- 1x 30-round Magpul PMAG for 300 BLK (polymer)
Built around a 7.0 in cold-hammer-forged S2W barrel, this PDW balances durability with compact size. The 1:7 twist is suited to the caliber’s common bullet weights, and the barrel is threaded and fitted with a factory linear compensator to direct blast forward.
The Daniel Defense MFR XL 6.0 free-float aluminum handguard provides M-LOK mounting slots and a T-marked Picatinny top rail for accessories. Magpul MBUS flip-up front and rear sights come installed for immediate use.
A Maxim Defense CQB brace offers multiple positions on dual guide rods, keeping the overall length short while providing solid support. The Daniel Defense textured polymer pistol grip supplies a secure, consistent hold.
The forged upper includes a forward assist, shell deflector, and dust cover. This AR-15 pattern pistol uses a direct-impingement, pistol-length gas system and carries a 30+1 capacity. Made in the United States, it measures approximately 20.75–24.75 in overall and weighs about 5.7 lb.