Diamondback DB15 7" 5.56 NATO AR-15 Pistol – Free-Float M-LOK Rail, 30-Round Mag Included
This Diamondback DB15 pistol condenses the trusted AR-15 platform into a compact 7-inch package built entirely in the USA. A 4150 CrMoV heavy barrel, free-float M-LOK handguard, and hard-coat-anodized 7075-T6 receivers provide durability, while the pistol-length gas system keeps cycling reliable. Factory threading and a multi-prong flash hider make it suppressor-ready right out of the box.
Condition
Overall Condition: Good – shows signs of prior use and handling.
Bore Condition: Excellent – clean, mirror finish, no signs of wear.
Rifling Condition: Excellent – sharp lands and grooves.
Specific Condition Notes: The receivers and handguard display noticeable handling marks from previous use.
What’s Included
- Diamondback DB15 5.56 NATO pistol
- Magpul PMAG Gen M2 MOE 30-round magazine
Diamondback machines the DB15’s upper and lower from 7075-T6 aluminum and protects them with a black hard-coat anodized finish. Matching laser-etched markings and a QR code on the lower confirm its factory provenance.
The 7-inch heavy-profile barrel is made from 4150 CrMoV steel, treated with a black nitride finish for corrosion resistance, and threaded 1/2x28 for muzzle devices or suppressors. A multi-prong flash hider is installed at the factory.
A free-float aluminum M-LOK handguard covers the pistol-length gas system and offers a full-length Picatinny top rail for optics or irons. Additional M-LOK slots run along the sides and bottom for lights, grips, or accessories.
Standard AR controls include a single-stage trigger, Mil-Spec mag release, and charging handle. A foam-sleeved pistol buffer tube completes the compact layout while keeping the firearm brace-ready if the buyer chooses to add one.
Chambered for 5.56 NATO (.223 Rem.), the DB15 feeds from standard AR magazines and ships with a 30-round Magpul PMAG. A 1:8 RH twist stabilizes a wide range of bullet weights, making this pistol versatile for range work or defensive roles.




