The Diamondback DB15 5.56x45mm AR rifle with 16" barrel is a straightforward, no-nonsense platform built for hunters, sport shooters, and riflemen who want a compact carbine that works out of the box. This black AR-15 delivers the ergonomic familiarity and modularity the platform is known for, backed by Diamondback's attention to quality fundamentals: a forged aluminum upper and lower, a properly inspected carrier, and a 1:8 twist barrel that stabilizes common 5.56 ammunition across the velocity range.
At 16 inches, the barrel strikes a practical balance between velocity and maneuverability—useful whether you're running drills at the range, hunting medium game, or keeping a rifle handy for property work. The carbine-length gas system pairs well with that barrel length to cycle reliably across standard and modern 5.56 loads. You get a 12-inch M-LOK handguard for mounting optics, lights, or other accessories, along with a MOE carbine stock for a solid, adjustable cheekrest and a MOE grip that fits most hands comfortably.
This model ships California-compliant with a locked magazine and includes a 10-round PMAG Gen M3 magazine. The A2 flash hider (1/2x28 threads) helps tame muzzle flash in lower-light conditions and allows future suppressor mounting if your local laws permit. Whether you're new to AR-15s or adding another rifle to the safe, the DB15 offers solid execution at a price that doesn't ask you to overspend on features you won't use.
| Caliber | 5.56x45mm NATO |
| Barrel Length | 16 inches |
| Barrel Material | 4150 CrMov with black nitride finish |
| Twist Rate | 1:8 right-hand |
| Gas System | Carbine-length |
| Upper Receiver | Forged 7075 T-6 aluminum A3 flattop |
| Lower Receiver | Forged 7075 T-6 aluminum Diamondback standard |
| Bolt Carrier Group | Shot-peened, magnetic particle-inspected MIL-spec 8620 |
| Handguard | 12-inch M-LOK rail |
| Stock | MOE carbine stock |
| Grip | MOE pistol grip |
| Muzzle Device | A2 flash hider (1/2x28 threads) |
| Magazine | 1x 10-round PMAG Gen M3 (locked) |
| Trigger | Standard |
| Finish | Black |
| Model | DB1790K001 |
Yes. The 5.56x45mm cartridge and 16-inch barrel are commonly used for varmint and small- to medium-game hunting, depending on your local regulations and game selection. The compact profile also suits hunters who prefer a shorter, lighter rifle in brushy terrain.
Yes. The A3 flattop upper receiver includes Picatinny rail space for mounting any standard optic or red dot. The 12-inch M-LOK handguard also allows you to attach lights, laser devices, or other tactical accessories without gunsmithing.
The rifle includes one 10-round PMAG Gen M3 magazine and is California-compliant with a locked magazine system. Optics, sights, and other accessories are sold separately.
A 1:8 twist is a versatile, modern standard that stabilizes a broad range of 5.56 ammunition, from lighter varmint rounds to heavier match and duty loads. It's an excellent all-purpose choice if you plan to shoot different ammunition types without concern for bullet weight compatibility.
The A2 flash hider features 1/2x28 threads, which are the standard for 5.56 suppressors. Suppressor purchase and registration requirements vary by state—check your local laws before proceeding.
Firearm Shipments:
To buy rifles or shotguns, you must be 18 years old, and for handguns, actions, or receivers, the minimum age is 21. By placing an order for this firearm, you confirm that you are the legitimate transferee/buyer, meet the legal age requirements, and comply with all Federal, State, and local laws and regulations necessary to purchase this firearm.
We only ship firearms to valid Federal Firearms License (FFL) holders. At checkout we provide a FFL locator for your convenience.
We will need a copy of the FFL’s license to facilitate the process, kindly request your dealer to email us a copy of their FFL, as we cannot dispatch the firearm until we receive this document. It is imperative for the buyer to choose their FFL dealer, ensure they are willing to facilitate the transfer, and have them email their FFL copy to BOSQUE Outdoors. To avoid any confusion, the customer's name or order number must be mentioned in the email containing the FFL.
Email: [email protected]
Diamondback
Diamondback
Diamondback
