The Dead Air Xeno Pistol Wee Brake in M13.5-1LH (Dead Air part no. DA135) is the left-hand metric version of Dead Air’s 9mm-bore Wee Brake. It is a quick-detach mounting option built with pistol-caliber subguns in mind, and at 1.92 ounces it is the lightest of the three thread versions. The body is nitrided 4140 steel, which Dead Air chose for hardness and corrosion resistance. Add the appropriate Xeno Adapter to put a Dead Air suppressor on it.

Key Specifications

• The muzzle thread is M13.5-1LH, a metric, left-hand pattern, so it will not fit 1/2-28 or 5/8-24 muzzles.
• The through bore is 9mm, which is the bore size Dead Air gives for every thread version of this brake.
• The listed weight for this version is 1.92 ounces, light enough to leave a pistol-caliber carbine or subgun balanced.
• Overall length is 1.575 inches, as Dead Air lists it for the Wee Brake, which keeps the device short at the muzzle.
• The body is 4140 heat-treated alloy steel, a hard steel that stands up to repeated mounting.
• The finish is black nitride, which Dead Air says will not gall threads the way uncoated 17-4 products can.
• It is a quick-detach mounting option designed with pistol-caliber subguns in mind.
• It pairs with the appropriate Xeno Adapter for suppressors such as the Wolfman, Ghost, Primal, Nomad and Sierra 5.
• The shorter Xeno profile suits suppressors with smaller blast chambers, which is why Dead Air calls the design future-proof.

Frequently Asked Questions

What bore size does it have? Dead Air gives a 9mm bore for every thread version of the Xeno Pistol Wee Brake, and designed it with pistol-caliber subguns in mind.

Which suppressors does it work with? Pair it with the appropriate Xeno Adapter. Dead Air names the Wolfman, Ghost, Primal, Nomad and Sierra 5 among the suppressors that can use it through a Xeno Adapter.

Which barrels does this Wee Brake fit? It fits muzzles threaded M13.5-1LH. Dead Air lists the Xeno Pistol Wee Brake in 1/2-28, 5/8-24 and M13.5-1LH versions as separate part numbers, so match the thread before ordering.

Buy the Dead Air Xeno Pistol Wee Brake, M13.5-1LH, 9mm

This is the right part only for a barrel threaded M13.5-1LH, so confirm the thread, then order from our Lubbock, Texas gun shop. Our Class 3 parts and accessories page has more mounts, and orders ship fast and insured.