Diamondback DB15 5.56 NATO AR-15 Rifle, 16-Inch Barrel, 12-Inch M-LOK Free-Float Handguard, Slick-Side Upper, Black, Threaded 1/2x28, 30+1
This Diamondback DB15 stands out with its slick-side upper receiver, a 12-inch free-float M-LOK handguard, and forged 7075-T6 aluminum receivers. It has a 16-inch threaded barrel with an A2 birdcage flash hider, a T-marked flat-top Picatinny upper, and clear caliber and maker markings. In excellent overall condition with a clean, mirror-bright bore, it offers a sharp, well-defined rifling profile and ships with a Magpul PMAG.
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: There are minimal markings from prior handling and use. See the photos for close-ups of surfaces and finish.
What’s Included
- Factory Diamondback cardboard box
- Owner's Manual
- 1x 30-round Magpul PMAG polymer magazine for 5.56x45
The DB15 uses a direct-impingement gas system and forged 7075-T6 aluminum upper and lower receivers for a proven AR-15 configuration. The upper receiver is slick-side, with no forward assist and an integral brass deflector, and is T-marked with a flat-top Picatinny rail. The ejection-port cover is marked "5.56 / NATO," and the lower is marked "CAL. MULTI" with the Diamondback DB shield.
The 16-inch barrel is threaded 1/2x28 and fitted with an A2 birdcage flash hider. Up front, a 12-inch free-float M-LOK aluminum handguard provides modern accessory mounting, along with a short 12 o'clock Picatinny segment.
Furniture includes a 6-position, collapsible M4-style polymer stock and an A2-style polymer grip with checkered panels. Controls are straightforward, with a standard right-side magazine release and a single-sided manual safety.
The rifle is finished in black and built in the USA. Capacity is 30+1 with the included Magpul PMAG. The condition of the bore and rifling reflects careful prior handling and maintenance.