Diamondback DB15 300 AAC Blackout AR-15 Rifle, 16-inch Barrel, FDE, Free-Float 12-inch M-LOK Handguard, Threaded with A2 Flash Hider, 30+1
This Diamondback DB15 chambered in 300 AAC Blackout combines a 16-inch threaded barrel with an A2-pattern flash hider, a flat-top Picatinny upper, and a free-float 12-inch M-LOK handguard. Finished in Flat Dark Earth with alloy receivers, it features an adjustable stock and Magpul MOE pistol grip. It arrives with a mounted detachable bipod and a 30-round magazine.
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: This firearm is in great shape with minor, superficial scratches and blemishes.
What’s Included
- Diamondback factory cardboard box with matching label (SKU DB15CCML300FDE)
- Detachable bipod mounted to bottom rail segment (installed)
- 1x 30-round Hexmag Series 2 polymer magazine (base marked 5.56x45mm NATO)
The DB15 300 AAC Blackout is a semi-automatic, direct-impingement AR-15 platform rifle built in the USA. Its 16-inch barrel is threaded and capped with an A2-pattern flash hider, providing a versatile setup for the 300 BLK chambering.
The rifle uses a flat-top Picatinny upper receiver with a shell deflector. The ejection-port cover is stenciled "300 AAC" for quick chamber identification. No sights are installed, allowing the buyer to choose their preferred sighting system.
A free-float 12-inch M-LOK aluminum handguard provides modern accessory mounting, with partial top rail sections and a bottom rail segment installed. A detachable bipod comes mounted to the bottom rail segment.
The Flat Dark Earth alloy receivers carry Diamondback's Cocoa, Florida rollmark. Additional details include a DB15 lower marked "CAL MULTI" with the Diamondback shield logo and an etched QR code, selector markings "SAFE" and "FIRE," and an upper forging code "A."
Furniture includes an adjustable polymer stock and a Magpul MOE pistol grip. The rifle accepts standard STANAG AR-15 magazines and has a stated capacity of 30+1.