Dead Air KeyMo Zero 9/16-24 RH 9mm/.357 Muzzle Mount – DA323
The Dead Air KeyMo Zero DA323 is a compact, minimalist quick-detach muzzle mounting device designed for the Dead Air KeyMo and KeyMicro suppressor attachment systems. This model features 9/16-24 right-hand barrel threads, a 9mm/.357 through bore, and a durable black nitride finish.
Unlike traditional muzzle brakes and flash hiders, the KeyMo Zero focuses on providing the mounting interface for a compatible suppressor without the additional length and bulk of an extended muzzle device.
Low-Profile KeyMo and KeyMicro Mounting
Dead Air designed the KeyMo Zero to provide a lightweight, repeatable quick-detach interface. Its shortened configuration reduces how far the muzzle device projects into a suppressor's blast chamber, helping preserve internal clearance and minimize overall mounting weight.
The KeyMo system allows a compatible suppressor to be attached and removed without the carbon-locking issues commonly associated with some suppressor mounting arrangements. The KeyMo Zero DA323 is compatible with Dead Air KeyMo and KeyMicro adapter-equipped suppressors, subject to the suppressor manufacturer's bore, cartridge, and mounting restrictions.
4140HT Steel Construction and Black Nitride Finish
Machined from heat-treated 4140 chromium-molybdenum steel, the KeyMo Zero is built for the durability expected of a suppressor mounting component. Its black nitride finish provides a corrosion-resistant exterior suited to regular range use.
The DA323 weighs approximately 2.2 ounces and measures 1.385 inches in overall length, with a 1.08-inch outside diameter. A 3/4-inch wrench and socket interface supports installation using appropriate tools.
9/16-24 Right-Hand Thread Configuration
This specific DA323 configuration uses 9/16-24 RH barrel threads and a 9mm/.357 through bore. Confirm your firearm's actual muzzle-thread specification before purchasing. The 9mm/.357 bore dimension describes the mount's clearance and does not independently establish compatibility with every 9mm or .357 cartridge.
Users must also verify that their suppressor and KeyMo or KeyMicro adapter are approved for the firearm, cartridge, pressure, barrel length, and mounting arrangement. This product is a muzzle mount, not a suppressor or suppressor adapter.
Popular Pairings & Related Accessories
The Dead Air KeyMo Zero DA323 is designed for use with compatible KeyMo and KeyMicro suppressor mounting systems. When selecting a related suppressor or adapter, verify the complete mounting configuration and manufacturer-approved caliber compatibility.
- Dead Air KeyMo Suppressor Adapters: Provide the matching quick-detach interface for compatible suppressors equipped with the appropriate adapter.
- Dead Air KeyMicro Suppressor Adapters: Offer another compatible mounting-system option where approved by Dead Air for the specific suppressor and host firearm.