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Pistol caliber carbines don't need a giant three-chamber brake hanging off the muzzle, and Dead Air knows it. The KeyMicro Brake DA110 is a short, single-port muzzle device built specifically for 9mm platforms running the 1/2-36 thread pitch, which covers most 9mm AR barrels and a good chunk of the PCC market. On its own, it takes the edge off muzzle rise and keeps your dot settled during fast strings. Where it really earns its keep, though, is as a suppressor mount.
The KeyMicro Brake is designed to pair with Dead Air's KeyMicro Adapter, giving cans like the Wolfman, Ghost-M, and Wolf-9SD the same fast, repeatable quick-attach setup that made the KeyMo system so popular, just scaled down for pistol caliber use. It also works with the full-size KeyMo Adapter, so Sandman series cans and anything else wearing a KeyMo mount can lock right on. Notably, the KeyMicro brakes are the only Dead Air muzzle brakes with a bore larger than .30 caliber, which is exactly why PCC owners have been asking for them. Leave the brake mounted on multiple hosts and swap one suppressor between them in seconds.
Dead Air machines this brake from 4140 heat-treated alloy steel and finishes it in black nitride, a combination that shrugs off carbon, heat, and holster wear better than most coatings. It measures 2.063 inches long, weighs 3.41 ounces, and carries a 9mm through bore that handles .38 caliber projectiles and smaller. A multi-thickness shim kit comes in the box, so you can time the port exactly where you want it without messing with crush washers.
Installation is straightforward: clean the threads, stack shims until the brake times correctly at torque, and you're done. Whether you're suppressing a 9mm AR, an MP5 clone with a threaded barrel, or just want a low-profile brake that won't snag on gear, the DA110 is a smart, simple upgrade that leaves the door open for a can down the road.
The DA110 serves as a mounting point for Dead Air suppressors fitted with either the KeyMicro Adapter or the full-size KeyMo Adapter. That covers cans like the Wolfman, Ghost-M, and Wolf-9SD with the KeyMicro Adapter, plus the Sandman series and other KeyMo-equipped suppressors. If your can wears one of those two mounts, it will lock onto this brake.
The 1/2"-36 pitch is the common standard for 9mm AR-pattern barrels and many other 9mm pistol caliber carbines. Check your barrel's thread specs before ordering, since some 9mm hosts use 1/2-28 instead. Dead Air also offers the KeyMicro Brake in 1/2-28 (DA109) and 5/8-24 (DA111) if your barrel is threaded differently.
No, and you shouldn't use one for a suppressor mount anyway. The DA110 ships with a multi-thickness shim kit so you can time the single port correctly while keeping a flat, square bearing surface for the suppressor. Shims give you repeatable alignment, which matters a lot when a can is hanging off the end.
Absolutely. On its own it functions as a minimalist single-port brake that helps tame muzzle movement on 9mm carbines. At just over two inches and 3.41 ounces, it stays out of the way until you're ready to add a can.
| UPC | 810128160537 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | DA110 |
| Color | Black |
| Model | |
| Product Type | Muzzle Brake |
| Shipping Weight | 0.265 |
| Thread Pattern | 1/2"-36 |
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