Availability: In Stock
The Diamondback DB15 300 AAC Blackout rifle is a practical, no-frills AR-platform choice for hunters and shooters who want a proven .300 Blackout setup without the premium price tag. Built on Diamondback's forged 7075 T-6 aluminum receiver set with a 16-inch heavy-profile 4150 CrMov barrel finished in black nitride, this carbine delivers the compact, subsonic-ready performance that makes .300 Blackout so appealing for suppressed hunting and range work. At 6.7 lbs, it's handy enough for hunting applications, and the 32.75-inch collapsed length makes it easy to move through brush or stow in a truck.
The rifle runs a pistol-length direct impingement gas system with a mil-spec carrier group that's been shot-peened and magnetic particle inspected—solid, battle-tested engineering that keeps things reliable. The A3 flattop upper receiver is equipped with a Picatinny rail for optics, and the 15-inch M-LOK handguard with anti-slip texture pads gives you modern accessory mounting without the weight penalty of full quad rails. The Magpul MOE grip is a no-nonsense choice that works well for most hand sizes, and the included Magpul Gen M3 PMAG (30-round capacity) is a standard you can trust.
Right out of the box, this rifle is ready to work. The A2 flash hider (5/8 x 24 threads) keeps muzzle signature manageable, and those threaded barrels accept suppressors or other muzzle devices if you want to tailor it later. The standard mil-spec trigger is predictable and clean. Whether you're building your first .300 Blackout, stepping up from a pistol, or rounding out a collection with a compact, capable rifle, the DB15 offers solid Diamondback quality without unnecessary weight or complexity.
| Caliber | .300 AAC Blackout |
| Barrel Length | 16 inches |
| Barrel Profile | Heavy |
| Barrel Material | 4150 CrMov with black nitride finish |
| Twist Rate | 1:8 right-hand |
| Upper Receiver | A3 flattop forged 7075 T-6 aluminum with Picatinny rail |
| Lower Receiver | Forged 7075 T-6 aluminum (DB15 Carbon Lower) |
| Finish | Black hardcoat anodize |
| Gas System | Pistol-length direct impingement |
| Bolt Carrier Group | Mil-spec 8620 steel, shot-peened, magnetic particle inspected |
| Handguard | 15-inch M-LOK with anti-slip texture pads |
| Grip | Magpul MOE |
| Trigger | Standard mil-spec |
| Magazine | Magpul Gen M3 PMAG, 30-round capacity |
| Muzzle Device | A2 flash hider (5/8 x 24) |
| Weight | 6.7 lbs |
| Length (Collapsed) | 32.75 inches |
| Length (Extended) | 36 inches |
Yes. The 16-inch barrel has a 5/8 x 24 threaded muzzle that accepts standard suppressors and other muzzle devices. The .300 Blackout cartridge is inherently subsonic-friendly, making this a natural pairing for suppressed shooting.
The rifle ships with a Magpul Gen M3 PMAG 30-round magazine, Magpul MOE grip, and A2 flash hider installed. You'll need to supply an optic or iron sights separately.
The DB15 uses standard AR-platform magazines. The included Magpul Gen M3 PMAG is a proven, reliable choice, and it's compatible with most modern AR magazines.
Yes. The 16-inch barrel and compact profile (32.75 inches collapsed) make it maneuverable in brush, and the .300 Blackout round is suitable for medium-game hunting. The rifie's weight at 6.7 lbs keeps it easy to carry all day.
SKU: 198466717 • Weight: 8.5oz
Availability: In Stock
The Diamondback DB15 300 AAC Blackout rifle is a practical, no-frills AR-platform choice for hunters and shooters who want a proven .300 Blackout setup without the premium price tag. Built on Diamondback's forged 7075 T-6 aluminum receiver set with a 16-inch heavy-profile 4150 CrMov barrel finished in black nitride, this carbine delivers the compact, subsonic-ready performance that makes .300 Blackout so appealing for suppressed hunting and range work. At 6.7 lbs, it's handy enough for hunting applications, and the 32.75-inch collapsed length makes it easy to move through brush or stow in a truck.
The rifle runs a pistol-length direct impingement gas system with a mil-spec carrier group that's been shot-peened and magnetic particle inspected—solid, battle-tested engineering that keeps things reliable. The A3 flattop upper receiver is equipped with a Picatinny rail for optics, and the 15-inch M-LOK handguard with anti-slip texture pads gives you modern accessory mounting without the weight penalty of full quad rails. The Magpul MOE grip is a no-nonsense choice that works well for most hand sizes, and the included Magpul Gen M3 PMAG (30-round capacity) is a standard you can trust.
Right out of the box, this rifle is ready to work. The A2 flash hider (5/8 x 24 threads) keeps muzzle signature manageable, and those threaded barrels accept suppressors or other muzzle devices if you want to tailor it later. The standard mil-spec trigger is predictable and clean. Whether you're building your first .300 Blackout, stepping up from a pistol, or rounding out a collection with a compact, capable rifle, the DB15 offers solid Diamondback quality without unnecessary weight or complexity.
| Caliber | .300 AAC Blackout |
| Barrel Length | 16 inches |
| Barrel Profile | Heavy |
| Barrel Material | 4150 CrMov with black nitride finish |
| Twist Rate | 1:8 right-hand |
| Upper Receiver | A3 flattop forged 7075 T-6 aluminum with Picatinny rail |
| Lower Receiver | Forged 7075 T-6 aluminum (DB15 Carbon Lower) |
| Finish | Black hardcoat anodize |
| Gas System | Pistol-length direct impingement |
| Bolt Carrier Group | Mil-spec 8620 steel, shot-peened, magnetic particle inspected |
| Handguard | 15-inch M-LOK with anti-slip texture pads |
| Grip | Magpul MOE |
| Trigger | Standard mil-spec |
| Magazine | Magpul Gen M3 PMAG, 30-round capacity |
| Muzzle Device | A2 flash hider (5/8 x 24) |
| Weight | 6.7 lbs |
| Length (Collapsed) | 32.75 inches |
| Length (Extended) | 36 inches |
Yes. The 16-inch barrel has a 5/8 x 24 threaded muzzle that accepts standard suppressors and other muzzle devices. The .300 Blackout cartridge is inherently subsonic-friendly, making this a natural pairing for suppressed shooting.
The rifle ships with a Magpul Gen M3 PMAG 30-round magazine, Magpul MOE grip, and A2 flash hider installed. You'll need to supply an optic or iron sights separately.
The DB15 uses standard AR-platform magazines. The included Magpul Gen M3 PMAG is a proven, reliable choice, and it's compatible with most modern AR magazines.
Yes. The 16-inch barrel and compact profile (32.75 inches collapsed) make it maneuverable in brush, and the .300 Blackout round is suitable for medium-game hunting. The rifie's weight at 6.7 lbs keeps it easy to carry all day.
SKU: 198466717 • Weight: 8.5oz