Diamondback DB15 Pistol 5.56mm NATO, 10 in Barrel, Free-Float M-LOK Handguard, SB Tactical Brace, Matte Black
This Diamondback DB15 AR-15 pattern pistol pairs a compact 10-inch 5.56mm NATO barrel with a free-float DB-branded M-LOK handguard and an A3 flat-top upper featuring a T-marked Picatinny rail. It includes an SB Tactical adjustable stabilizing brace, a Magpul MOE pistol grip, and Diamondback shield logos on the lower and handguard. Built in the United States, it runs a direct impingement system and offers a 30+1 capacity in a matte black finish.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Light handling marks are present. The bore presents a bright, clean appearance. See the photos for close-up views.
What's Included
- Diamondback Firearms owner's manual
- 1x 30-round Magpul PMAG polymer magazine
The A3 flat-top upper provides a T-marked Picatinny rail with forward assist, case deflector, and a 5.56 NATO-marked ejection port cover. This setup offers precise reference points for mounting and re-mounting optics or accessories along the continuous top rail.
The DB-branded, free-float M-LOK aluminum handguard maintains barrel clearance to support consistent performance. Its continuous top rail aligns with the upper receiver for uninterrupted accessory or optic mounting space.
Furniture includes an SB Tactical adjustable stabilizing brace for user fit and control, plus a Magpul MOE pistol grip for a secure, familiar hold. Diamondback shield logos on the lower and handguard add clear manufacturer identification.
The 10-inch barrel is threaded and fitted with an A2-style birdcage flash hider. The pistol uses a direct impingement action, features a manual safety, and carries a 30+1 capacity. The matte black finish on the receiver and components presents a uniform, modern look.



