Diamondback DB-15 5.56mm AR Pistol | 7-Inch Heavy Barrel, Free-Float M-LOK Handguard, Threaded 1/2-28
The Diamondback DB-15 AR pistol delivers rifle-grade performance in a compact, brace-free package. Built on forged 7075-T6 receivers and anchored by a 7-inch heavy CrMoV barrel, this direct-impingement platform offers reliable 5.56mm firepower while avoiding NFA implications thanks to its foam-covered buffer tube. A free-float aluminum handguard with M-LOK and KeyMod slots keeps weight down and accessory options open, making this a versatile choice for shooters who want maneuverability without sacrificing capability.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Excellent – Bright, mirror finish with sharp lands and grooves.
Specific Condition Notes: Light handling marks are visible on the receiver and handguard; no functional issues observed.
What's Included
- Diamondback DB-15 5.56mm AR pistol
- One 30-round Magpul PMAG polymer magazine
The forged 7075-T6 upper and lower receivers feature Diamondback’s trademark diamond logo and a hard-anodized matte black finish for durability and corrosion resistance.
Its 7-inch 4150 CrMoV heavy barrel is black-nitride treated for extended barrel life and wears 1/2-28 threads, ready for muzzle devices or suppressors.
A pistol-length gas system optimizes reliability with the shorter barrel, while the free-float aluminum handguard keeps the gas block covered and provides M-LOK/KeyMod slots plus a full-length top rail.
The pistol ships with a Magpul MOE grip, standard mil-spec trigger, and manual safety—components that are easy to upgrade but proven for dependable service right out of the box.




