The Dead Air KeyMicro Brake 1/2-36 (Dead Air part no. DA110) is a short, lightweight single port muzzle brake with a 9mm bore. It is machined from 4140 heat-treated alloy steel in black nitride and runs 2.063 inches long. This is the finer 1/2-36 pitch, a different thread from the 1/2-28 version, so the number on the part decides whether it screws onto your barrel. Dead Air designed it for the KeyMicro Adapter, and it works with the KeyMo Adapter or as a minimalist brake by itself.

Key Specifications

• The muzzle thread is 1/2-36, the pitch that decides which barrels this version fits.
• The through bore is 9mm, which Dead Air lists for every KeyMicro muzzle device.
• Material is 4140 heat-treated alloy steel, a strong steel for heat and repeated mounting.
• The finish is black nitride, which adds corrosion and wear resistance.
• Overall length is 2.063 inches, short enough to keep the muzzle compact.
• Weight is 3.41 ounces, as Dead Air lists for the KeyMicro Brake.
• The design is a single port brake, a short, lightweight take on recoil control.
• It is designed for the KeyMicro Adapter and also works with the KeyMo Adapter.
• A shim kit ships with the brake, for timing it on the muzzle.
• On its own it functions as a minimalist muzzle brake, so it is useful bare as well as with an adapter.

Frequently Asked Questions

Is the 1/2-36 KeyMicro Brake the same as the 1/2-28? No. It has the same 2.063-inch body and 9mm bore, but the muzzle thread is the finer 1/2-36 pitch, so it will not thread onto a 1/2-28 barrel.

Which adapters does it work with? It is made for the KeyMicro Adapter and is also compatible with the KeyMo Adapter.

What is the through bore? Dead Air lists a 9mm through bore for the 1/2-36 version, as on the other KeyMicro muzzle devices.

Buy the Dead Air KeyMicro Brake 1/2-36 Single Port, 9mm

Some pistol caliber barrels carry the finer 1/2-36 thread, and this brake is cut for exactly that. It is the same compact KeyMicro design as the 1/2-28, with the pitch as the only change. Compare it with the rest of our silencer parts and accessories and order from our Lubbock, Texas gun shop for fast shipping.