The Diamondback Firearms DB15 5.56x45mm is a compact, pistol-length AR carbine built on a platform that doesn't compromise on quality or shootability. With a 10-inch barrel, this rifle delivers the handling speed of a short rifle while maintaining solid velocity in the most common intermediate cartridge. It's at home for close-quarters shooting, hunting hogs or varmints where rifle mobility matters, or simply exploring what a compact 5.56 platform can do.
Diamondback barrels are known for holding tolerances, and this one is a 4150 CrMov steel with black nitride finish—a no-nonsense choice that resists corrosion and won't break the bank. The 1:8 twist rate handles a wide range of bullet weights effectively. A pistol-length gas system keeps the receiver impulse manageable and pairs well with the short barrel. The forged 7075 T-6 aluminum upper and lower are lightweight and durable; the A3 flattop upper runs standard Picatinny, and the A2 grip is familiar, reliable plastic. The 6-inch M-LOK handguard gives you rail real estate without clutter, and everything comes ready to attach optics or accessories.
Out of the box, you get a 30-round P-Mag, an A2 flash hider, a shot-peened and magnetically particle-inspected MIL-spec BCG, and a buffer tube with foam pad—the essentials to function. No sights are installed, which means you can pick optics that suit your mission. Whether you're a competitive shooter, a hunter who values compact gear, or someone exploring short-barrel rifle options, the DB15 gives you real features at a realistic price point.
| Caliber | 5.56 NATO |
| Barrel Length | 10 inches |
| Barrel Material | 4150 CrMov steel, black nitride |
| Twist Rate | 1:8 right-hand |
| Upper Receiver | Forged 7075 T-6 aluminum, A3 flattop with T-marks |
| Lower Receiver | Forged 7075 T-6 aluminum, Diamondback standard |
| Gas System | Pistol-length |
| Bolt Carrier Group | MIL-spec 8620 steel, shot-peened and magnetic particle inspected |
| Handguard | 6-inch M-LOK rail with barrel nut and screws |
| Grip | A2-style black plastic |
| Stock | Buffer tube with foam pad |
| Muzzle Device | A2 flash hider, 1/2" x 28 TPI |
| Trigger | Standard |
| Sights | None included |
| Magazine | 30-round P-Mag |
| Finish | Black hardcoat anodized |
The DB15 is chambered in 5.56 NATO, so it runs standard 5.56 ammunition as well as .223 Remington. The 1:8 twist rate handles a wide spectrum of bullet weights—from light 55-grain rounds to heavier 77-grain match loads.
No, the DB15 ships without iron sights or optics. The A3 flattop upper receiver features standard Picatinny mounting for optics, so you can install a red dot, LPVO, or scope to match your intended use.
You get the rifle, one 30-round P-Mag, and all necessary components for assembly and operation. The buffer tube includes a foam pad, and the muzzle comes equipped with an A2 flash hider.
The handguard is a 6-inch M-LOK rail mounted with a barrel nut and hardware. It provides solid mounting real estate for lights, lasers, or vertical grips without excess length.
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
Diamondback
