Availability: In Stock
The Diamondback DB15 5.56 NATO pistol is a compact, modern take on the classic AR platform—built for shooters who want serious firepower in a maneuverable package. This 10-inch barreled AR pistol pairs a heavy, threaded barrel with an SB Tactical brace, delivering the handling of a short-stroke rifle in a lightweight (5.7 lb) form factor ideal for home defense, truck guns, or shooters who demand mobility without sacrificing capability. The OD Green Cerakote finish gives it a field-ready aesthetic while the 4150 CrMoV Black Nitride barrel promises durability through heavy use.
You'll appreciate the attention to detail here: the forged 7075 T-6 aluminum upper and lower are mil-spec tough, the shot-peened and magnetic-particle-inspected carrier ensures reliability, and the 9-inch M-LOK handguard gives you genuine modularity for mounting lights, lasers, or other tactical gear. The Magpul MOE grip and included Gen M2 PMAG 30-rounder round out a setup that's combat-ready from the box. Carbine-length direct impingement keeps the gas system proven and straightforward. This is a no-frills, no-compromise build that prioritizes function over flash.
At 26 inches collapsed and 28.5 inches extended, the DB15 fits tight spaces without feeling cramped or underpowered. The standard mil-spec trigger is predictable, and the A2 flash hider keeps things tidy on the muzzle. Whether you're stacking rounds at the range, running a home-defense drill, or building a truck-gun setup, the Diamondback DB15 delivers modern AR ergonomics and reliability in a compact package that actually handles like a pistol should.
| Brand | Diamondback Firearms |
| Model | DB1916K101 DB15 |
| Caliber | 5.56 NATO |
| Barrel Length | 10 inches |
| Barrel Material | 4150 CrMoV, Black Nitride finish |
| Barrel Twist | 1:8, right-hand |
| Muzzle Device | A2 Flash Hider (1/2 x 28 threaded) |
| Gas System | Carbine-length direct impingement |
| Upper Receiver | Forged 7075 T-6 aluminum, A3 flattop, T-marked |
| Lower Receiver | Forged 7075 T-6 aluminum (DB15 carbon lower) |
| Bolt Carrier Group | Shot-peened, magnetic-particle-inspected mil-spec 8620 |
| Handguard | 9-inch polymer M-LOK rail |
| Grip | Magpul MOE, black |
| Brace | SB Tactical SBA3 |
| Trigger | Standard mil-spec |
| Magazine Included | Magpul Gen M2 PMAG, 30-round, 5.56 NATO |
| Sights | None |
| Weight | 5.7 lb |
| Length (Collapsed) | 26 inches |
| Length (Extended) | 28.5 inches |
| Finish | OD Green Cerakote |
The Diamondback DB15 uses a 10-inch barrel and SB Tactical brace instead of a traditional stock, making it shorter and more maneuverable—roughly 26 inches collapsed. It fires the same 5.56 NATO round and uses a carbine-length gas system, but the compact form factor makes it ideal for tight spaces, vehicles, or shooters who prioritize handling over sight radius. Carbine-length gas impingement keeps it reliable despite the short barrel.
Yes. The 9-inch M-LOK rail accepts standard M-LOK accessories—lights, lasers, bipods, and other gear mount directly without tools. The upper receiver has an A3 flattop with Picatinny rails, so optics go on top. You'll want to verify that any optic clears the SB Tactical brace when fully extended.
The 10-inch barrel is threaded 1/2 x 28 and includes an A2 flash hider, so yes—you can thread on a suppressor or other muzzle device. The short barrel already reduces muzzle blast, and a suppressor would make it even quieter, though you should verify your local laws regarding suppressors on pistol-braced ARs.
The DB15 ships with a Magpul Gen M2 PMAG 30-round magazine in 5.56 NATO, the SB Tactical SBA3 brace, the Magpul MOE grip, and the A2 flash hider already installed. You'll need to supply ammo and optics; no sights come standard.
SKU: 198465854 • Weight: 7.1oz
Availability: In Stock
The Diamondback DB15 5.56 NATO pistol is a compact, modern take on the classic AR platform—built for shooters who want serious firepower in a maneuverable package. This 10-inch barreled AR pistol pairs a heavy, threaded barrel with an SB Tactical brace, delivering the handling of a short-stroke rifle in a lightweight (5.7 lb) form factor ideal for home defense, truck guns, or shooters who demand mobility without sacrificing capability. The OD Green Cerakote finish gives it a field-ready aesthetic while the 4150 CrMoV Black Nitride barrel promises durability through heavy use.
You'll appreciate the attention to detail here: the forged 7075 T-6 aluminum upper and lower are mil-spec tough, the shot-peened and magnetic-particle-inspected carrier ensures reliability, and the 9-inch M-LOK handguard gives you genuine modularity for mounting lights, lasers, or other tactical gear. The Magpul MOE grip and included Gen M2 PMAG 30-rounder round out a setup that's combat-ready from the box. Carbine-length direct impingement keeps the gas system proven and straightforward. This is a no-frills, no-compromise build that prioritizes function over flash.
At 26 inches collapsed and 28.5 inches extended, the DB15 fits tight spaces without feeling cramped or underpowered. The standard mil-spec trigger is predictable, and the A2 flash hider keeps things tidy on the muzzle. Whether you're stacking rounds at the range, running a home-defense drill, or building a truck-gun setup, the Diamondback DB15 delivers modern AR ergonomics and reliability in a compact package that actually handles like a pistol should.
| Brand | Diamondback Firearms |
| Model | DB1916K101 DB15 |
| Caliber | 5.56 NATO |
| Barrel Length | 10 inches |
| Barrel Material | 4150 CrMoV, Black Nitride finish |
| Barrel Twist | 1:8, right-hand |
| Muzzle Device | A2 Flash Hider (1/2 x 28 threaded) |
| Gas System | Carbine-length direct impingement |
| Upper Receiver | Forged 7075 T-6 aluminum, A3 flattop, T-marked |
| Lower Receiver | Forged 7075 T-6 aluminum (DB15 carbon lower) |
| Bolt Carrier Group | Shot-peened, magnetic-particle-inspected mil-spec 8620 |
| Handguard | 9-inch polymer M-LOK rail |
| Grip | Magpul MOE, black |
| Brace | SB Tactical SBA3 |
| Trigger | Standard mil-spec |
| Magazine Included | Magpul Gen M2 PMAG, 30-round, 5.56 NATO |
| Sights | None |
| Weight | 5.7 lb |
| Length (Collapsed) | 26 inches |
| Length (Extended) | 28.5 inches |
| Finish | OD Green Cerakote |
The Diamondback DB15 uses a 10-inch barrel and SB Tactical brace instead of a traditional stock, making it shorter and more maneuverable—roughly 26 inches collapsed. It fires the same 5.56 NATO round and uses a carbine-length gas system, but the compact form factor makes it ideal for tight spaces, vehicles, or shooters who prioritize handling over sight radius. Carbine-length gas impingement keeps it reliable despite the short barrel.
Yes. The 9-inch M-LOK rail accepts standard M-LOK accessories—lights, lasers, bipods, and other gear mount directly without tools. The upper receiver has an A3 flattop with Picatinny rails, so optics go on top. You'll want to verify that any optic clears the SB Tactical brace when fully extended.
The 10-inch barrel is threaded 1/2 x 28 and includes an A2 flash hider, so yes—you can thread on a suppressor or other muzzle device. The short barrel already reduces muzzle blast, and a suppressor would make it even quieter, though you should verify your local laws regarding suppressors on pistol-braced ARs.
The DB15 ships with a Magpul Gen M2 PMAG 30-round magazine in 5.56 NATO, the SB Tactical SBA3 brace, the Magpul MOE grip, and the A2 flash hider already installed. You'll need to supply ammo and optics; no sights come standard.
SKU: 198465854 • Weight: 7.1oz