Description
There is something satisfying about a .308 that does not take up half the safe. The Diamondback DB10 Carbon pistol squeezes real .308 Winchester performance into a 13.5 inch barreled platform topped off with an SB Tactical SBA3 adjustable brace, and the Midnight Bronze Cerakote gives it a look you will not see on every rack. Built at Diamondback's facility in Cocoa, Florida, this one comes from their Carbon Series, which is their way of saying you get the features that matter without paying for extras you would swap out anyway.
What Makes the DB10 Carbon Worth a Look
The receivers are forged 7075-T6 aluminum, the same material spec you will find on rifles costing considerably more, and the flat top upper gives you a clean Picatinny surface for whatever optic you have in mind. The 13.5 inch barrel wears a 1:10 twist that stabilizes the common 147 to 175 grain .308 loads well, and the 5/8×24 threaded muzzle comes capped with an A2 flash hider, so swapping to a brake or suppressor mount is a five minute job. Diamondback runs a mid-length gas system on this build, which takes some of the sharpness out of the recoil impulse compared to shorter gas setups in this caliber.
DB10 Pistol Furniture and Handling
Magpul handled the touch points here. You get the MOE K grip paired with the SBA3 brace, which adjusts through five positions and keeps the whole package compact for storage or stretched out for comfort. The 13 inch M-LOK handguard leaves plenty of room for a light, hand stop, or bipod while keeping your support hand off the gas block. At around 5.1 pounds bare, this thing is genuinely handy for a .308, whether that means a truck gun, a hog setup, or just a fun large-frame blaster.
Each one ships with a single 20-round Magpul Gen M3 PMAG, so you are ready to load up and zero right out of the box. For anyone who has wanted AR-10 power without AR-10 bulk, the DB10 Carbon makes a strong case.
Key Specifications
- Manufacturer: Diamondback Firearms
- Model: DB10 Carbon Series Pistol
- MPN: DB1222C072
- UPC: 810035753471
- Caliber: .308 Winchester / 7.62 NATO
- Action: Semi-Auto, Direct Impingement
- Gas System: Mid-Length
- Barrel Length: 13.5"
- Twist Rate: 1:10
- Muzzle Thread / Device: 5/8×24, A2 Flash Hider
- Capacity: 20+1
- Brace: SB Tactical SBA3, 5-Position Adjustable
- Handguard: 13" M-LOK
- Receivers: Forged 7075-T6 Aluminum
- Finish: Midnight Bronze Cerakote
- Weight: 5.1 lbs
What’s Included
- Diamondback DB10 Carbon .308 Win pistol
- One 20-round Magpul Gen M3 PMAG
- A2 flash hider (installed)
Frequently Asked Questions
Is the DB10 Carbon pistol suppressor ready?
Yes, the 13.5 inch barrel is threaded 5/8×24, which is the standard thread pitch for .30 caliber muzzle devices and suppressor mounts. It ships with an A2 flash hider installed, so you can spin that off and mount your can or a brake without any gunsmithing.
How does the SBA3 brace work on the Diamondback DB10?
The SB Tactical SBA3 rides on a mil-spec carbine buffer tube and adjusts through five positions, so you can run it collapsed for a compact footprint or extended for a more comfortable fit. It also has an integrated QD sling socket, which is handy for a single-point sling setup.
What kind of recoil should I expect from a 13.5 inch .308 pistol?
It has more bark than a 5.56 pistol for sure, but Diamondback runs a mid-length gas system on this build, which smooths out the impulse noticeably compared to shorter gas setups in this caliber. A quality muzzle brake in place of the A2 flash hider tames it further if you plan on longer range sessions.
Does the DB10 come with iron sights or an optic?
No, the flat top Picatinny upper and M-LOK handguard ship bare, so plan on adding your own optic or backup sights. A red dot or LPVO is a popular pairing on this platform, and the full-length top rail gives you plenty of mounting real estate.





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