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8.6 Blackout is doing for large-frame ARs what 300 Blackout did for the AR-15, and the Diamondback DB10 is one of the cleaner factory builds you can grab in the chambering. Built in Cocoa, Florida on forged 7075-T6 aluminum receivers, this AR pistol runs a 12-inch 4150 chrome moly vanadium barrel with a black nitride finish and the famously aggressive 1:3 right-hand twist the cartridge demands. That fast twist is the whole trick behind 8.6 Blackout: it spins heavy 285 to 342 grain bullets fast enough to stay stable and expand reliably even at subsonic speeds, which is exactly why this round has caught fire with suppressor owners and hog hunters alike.
Diamondback clearly understood the assignment here. The pistol-length gas system feeds through a Superlative Arms adjustable gas block, so when you spin a can onto the 5/8×24 threaded muzzle, you can tune the gas down instead of getting blasted with backpressure. Running unsuppressed with supersonics? Open it back up. The shot-peened, magnetic particle inspected 8620 bolt carrier keeps things running through it all, and the direct impingement system keeps the design familiar for anyone who has spent time behind an AR-10 pattern gun.
At 7.2 pounds with an overall length of 28.5 inches collapsed, this is a manageable gun for what it delivers. The 11-inch V3 M-LOK anti-rotation S-rail gives you a full-length Picatinny top for optics plus QD mounts for a sling, and the SB Tactical SBA5 brace adjusts to fit your setup. A Magpul MOE K grip and a 20-round Gen M3 PMAG finish it off. There are no sights included, so budget for an optic, which is how most folks run these anyway.
If you have been waiting for a factory 8.6 Blackout that does not require piecing together an upper from three different shops, this is it. Range days, hog country, or a dedicated suppressor host, the DB10 covers the ground this cartridge was designed for.
Very much so. The muzzle is threaded 5/8×24 and ships with a thread protector, and the Superlative Arms adjustable gas block lets you bleed off excess gas when running a can. That combination makes it easy to tune the gun for subsonic loads, which is where 8.6 Blackout really shines.
That extremely fast twist is part of the 8.6 Blackout spec, not a quirk of this gun. The cartridge relies on high rotational speed to stabilize heavy 285 to 342 grain bullets and drive reliable expansion, even at subsonic velocities out of a short barrel. It is a big part of why the round performs so well suppressed.
No, it ships without sights. The flattop upper and full-length Picatinny rail on the 11-inch handguard give you plenty of real estate for a red dot, LPVO, or backup irons. Most owners top these with an optic from day one.
It uses standard SR-25/AR-10 pattern magazines and includes one 20-round Magpul Gen M3 PMAG. Since 8.6 Blackout is based on a shortened .338 Federal case, it feeds from the same large-frame mags as a .308 build, so spares are easy to find.
| UPC | 810035754461 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | DB1200W001 |
| Action | |
| ATF Type | Pistol |
| Barrel Finish | Black Nitride |
| Barrel Length | 12" |
| Caliber/Gauge | 8.6 Blackout |
| Capacity | 20 + 1 |
| Color | Black |
| Length | 7.5'' |
| Magazine Included | 1 x 20-Round |
| Model | |
| Mount | Picatinny/QD Monuts |
| Number of Magazines | 1 20 rd. Magpul P-Mag |
| Package Height | 3.8 |
| Package Width | 9.0 |
| Product Type | Semi-Auto Pistol |
| Safety | Thumb |
| Shipping Weight | 9.05 |
| Thread Pattern | 5/8"x24 |
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