Diamondback DB15 .300 AAC Blackout AR-15, 16 in Threaded Barrel, Free-Float M-LOK, Forged 7075-T6, 30+1
The Diamondback DB15 in .300 AAC Blackout combines a 16-inch threaded barrel with a free-float M-LOK handguard and forged 7075-T6 receivers. It features a flat-top upper with an integral Picatinny rail, forward assist, shell deflector, and an ejection-port cover laser-marked "300 AAC." Made in Cocoa, Florida, this rifle delivers a clean, well-executed AR-15 configuration in a versatile 300 BLK chambering.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: This firearm is in great shape. There are some minor scratches and blemishes present.
What's Included
- Diamondback DB15 .300 AAC Blackout rifle
- 1x 30-round Magpul PMAG GEN M3 for 300 BLK (polymer)
Chambered in .300 AAC Blackout (7.62x35mm), this DB15 uses a direct impingement, semi-automatic operating system with a 16-inch barrel. The barrel is threaded and capped with an A2-pattern birdcage flash hider, giving you a ready-to-use muzzle interface.
The free-float aluminum M-LOK handguard pairs with a low-profile gas block for a clean, streamlined front end. Top rail sections at the receiver and at the muzzle end provide mounting flexibility for accessories.
The flat-top upper integrates a Picatinny rail and includes a forward assist, shell deflector, and an ejection-port cover laser-marked "300 AAC" for clear caliber identification. Receivers are forged from 7075-T6 aluminum and finished in hardcoat anodize. The lower is marked with the DB shield logo, "CAL. MULTI," and includes a QR/data matrix.
Furniture and controls are straightforward and reliable, including a 6-position collapsible polymer stock, a Magpul MOE pistol grip, and a manual safety selector. Capacity is 30+1, and the rifle ships with a Magpul PMAG GEN M3 specifically for 300 BLK. Sights are not included, and the flat-top receiver provides a continuous rail surface for mounting as desired.
Manufactured in Cocoa, Florida, USA, this DB15 delivers a focused .300 BLK setup with forged receivers, a free-float M-LOK handguard, and practical AR-15 features throughout.