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Diamondback DB15 .300 AAC Blackout AR Rifle w/ 16" Barrel Black$1,012.50
Availability: In Stock
Current Stock: Out of stock
The Diamondback DB15 .300 AAC Blackout AR rifle brings effective, quiet firepower to hunters and shooters who demand a modern, purpose-built platform. Built on a forged 7075 T-6 aluminum receiver set with a flattop upper and enhanced lower, this 16-inch rifle delivers the ballistic efficiency of subsonic and supersonic .300 Blackout loads in a compact, maneuverable package. The pistol-length gas system and 1:8 right-hand twist barrel stabilize the full range of .300 BO ammunition, making it equally at home in a deer stand or at the range.
Diamondback engineered this rifle for reliability and user control. The barrel—a Diamondback 4150 CrMov heavy profile with black nitride finish—pairs with a shot-peened, magnetic particle inspected MIL spec 8620 carrier for durable lockup and long service life. A standard trigger provides the predictability you need for accurate shooting, while the MOE-K2 grip and Magpul CTR stock ensure a natural, repeatable shooting position whether you're running the gun at full length (36 inches) or collapsed (32¾ inches) for tight quarters or vehicle carry.
The M-LOK handguard with anti-slip texture pads gives you multiple attachment points for lights, lasers, or slings without the weight of a full picatinny rail. The included Diamondback CNC flash hider (5/8x24 thread) tames muzzle report and flash, and the rifle ships with a 30-round Gen 3 PMAG in .300 Blackout, so you're ready to load and go. At 6.8 pounds, the DB15 .300 Blackout strikes a practical balance between controlability and handling speed—lightweight enough for extended carry, stout enough for consistent performance.
| Caliber | .300 AAC Blackout |
| Barrel Length | 16 inches |
| Barrel Profile | Heavy, 4150 CrMov, black nitride finish |
| Twist Rate | 1:8 right-hand |
| Gas System | Pistol-length |
| Upper Receiver | A3 flattop forged 7075 T-6 aluminum, T-marked |
| Lower Receiver | Forged 7075 T-6 aluminum with enhanced trigger guard |
| Bolt Carrier Group | MIL spec 8620, shot-peened, magnetic particle inspected |
| Handguard | Diamondback M-LOK (V rail) with anti-slip texture pads |
| Grip | Magpul MOE-K2 |
| Stock | Magpul CTR (collapsible) |
| Trigger | Standard |
| Muzzle Device | Diamondback CNC DBSB IV flash hider (5/8x24) |
| Weight | 6.8 pounds |
| Length (Stock Collapsed) | 32¾ inches |
| Length (Stock Extended) | 36 inches |
| Included Magazine | 30-round .300 Blackout Gen 3 PMAG |
This rifle is chambered in .300 AAC Blackout, which means it fires both subsonic and supersonic .300 Blackout loads. The 1:8 right-hand twist barrel stabilizes the full range of ammunition available in this caliber, from heavy subsonic rounds designed for sound suppression to faster supersonic loads for longer-range work.
The .300 Blackout is an effective hunting cartridge for medium-sized game and is particularly popular among hunters who prioritize quiet operation, whether suppressed or unsuppressed. Its compact design and efficiency in a 16-inch rifle make it well-suited for hunting in enclosed terrain and close to mid-range shooting opportunities.
The DB15 ships ready to shoot with a 30-round Gen 3 PMAG in .300 Blackout, a Diamondback CNC flash hider, and the complete rifle assembled and tested. You'll need ammunition and a magazine loader to get started at the range or in the field.
Yes. The A3 flattop upper receiver is drilled and tapped for Picatinny rail mounts, allowing you to add optics of your choice. The M-LOK handguard also accepts a variety of tactical accessories including lights and lasers via standard M-LOK hardware.
SKU: 120921357 • Width: 11in • Height: 3.5in • Depth: 39in • Weight: 8.75oz
Availability: In Stock
Current Stock: Out of stock
The Diamondback DB15 .300 AAC Blackout AR rifle brings effective, quiet firepower to hunters and shooters who demand a modern, purpose-built platform. Built on a forged 7075 T-6 aluminum receiver set with a flattop upper and enhanced lower, this 16-inch rifle delivers the ballistic efficiency of subsonic and supersonic .300 Blackout loads in a compact, maneuverable package. The pistol-length gas system and 1:8 right-hand twist barrel stabilize the full range of .300 BO ammunition, making it equally at home in a deer stand or at the range.
Diamondback engineered this rifle for reliability and user control. The barrel—a Diamondback 4150 CrMov heavy profile with black nitride finish—pairs with a shot-peened, magnetic particle inspected MIL spec 8620 carrier for durable lockup and long service life. A standard trigger provides the predictability you need for accurate shooting, while the MOE-K2 grip and Magpul CTR stock ensure a natural, repeatable shooting position whether you're running the gun at full length (36 inches) or collapsed (32¾ inches) for tight quarters or vehicle carry.
The M-LOK handguard with anti-slip texture pads gives you multiple attachment points for lights, lasers, or slings without the weight of a full picatinny rail. The included Diamondback CNC flash hider (5/8x24 thread) tames muzzle report and flash, and the rifle ships with a 30-round Gen 3 PMAG in .300 Blackout, so you're ready to load and go. At 6.8 pounds, the DB15 .300 Blackout strikes a practical balance between controlability and handling speed—lightweight enough for extended carry, stout enough for consistent performance.
| Caliber | .300 AAC Blackout |
| Barrel Length | 16 inches |
| Barrel Profile | Heavy, 4150 CrMov, black nitride finish |
| Twist Rate | 1:8 right-hand |
| Gas System | Pistol-length |
| Upper Receiver | A3 flattop forged 7075 T-6 aluminum, T-marked |
| Lower Receiver | Forged 7075 T-6 aluminum with enhanced trigger guard |
| Bolt Carrier Group | MIL spec 8620, shot-peened, magnetic particle inspected |
| Handguard | Diamondback M-LOK (V rail) with anti-slip texture pads |
| Grip | Magpul MOE-K2 |
| Stock | Magpul CTR (collapsible) |
| Trigger | Standard |
| Muzzle Device | Diamondback CNC DBSB IV flash hider (5/8x24) |
| Weight | 6.8 pounds |
| Length (Stock Collapsed) | 32¾ inches |
| Length (Stock Extended) | 36 inches |
| Included Magazine | 30-round .300 Blackout Gen 3 PMAG |
This rifle is chambered in .300 AAC Blackout, which means it fires both subsonic and supersonic .300 Blackout loads. The 1:8 right-hand twist barrel stabilizes the full range of ammunition available in this caliber, from heavy subsonic rounds designed for sound suppression to faster supersonic loads for longer-range work.
The .300 Blackout is an effective hunting cartridge for medium-sized game and is particularly popular among hunters who prioritize quiet operation, whether suppressed or unsuppressed. Its compact design and efficiency in a 16-inch rifle make it well-suited for hunting in enclosed terrain and close to mid-range shooting opportunities.
The DB15 ships ready to shoot with a 30-round Gen 3 PMAG in .300 Blackout, a Diamondback CNC flash hider, and the complete rifle assembled and tested. You'll need ammunition and a magazine loader to get started at the range or in the field.
Yes. The A3 flattop upper receiver is drilled and tapped for Picatinny rail mounts, allowing you to add optics of your choice. The M-LOK handguard also accepts a variety of tactical accessories including lights and lasers via standard M-LOK hardware.
SKU: 120921357 • Width: 11in • Height: 3.5in • Depth: 39in • Weight: 8.75oz