Dead Air KeyMo Zero | 5/8-24 | .45 Cal | DA321

The Dead Air KeyMo Zero is a compact quick-detach muzzle mount designed to provide a lightweight, repeatable attachment point for KeyMo and KeyMicro adapter-equipped silencers. Constructed from heat-treated alloy steel with a black nitride finish, the mount reduces entrance into the suppressor blast chamber to help maximize sound performance while minimizing added length and weight. The KeyMo Zero is engineered to prevent carbon locking for easier suppressor removal and consistent reinstallation.

Typical applications include use on range firearms for routine shooting and for competitive or sport shooting where fast, repeatable suppressor attachment and minimal added length are desirable.

Product Specifications

• The manufacturer is Dead Air.
• The model is KeyMo Zero.
• The manufacturer part number is DA321.
• The UPC is 810128161596.
• The thread pattern is 5/8-24.
• The listed caliber is .45 Caliber.
• The material is 4140HT chromium-molybdenum heat-treated steel.
• The finish is Black nitride.
• The length is 1.385.
• The outside diameter is 1.08.
• The product type is Mount.
• The color is Black.
• The tool features include a 3/4 wrench and socket feature.
• Compatibility is listed as compatible with all Dead Air KeyMo and KeyMicro adapter-equipped silencers.
• The weight is 0.15.

The KeyMo Zero provides a minimal, durable mounting solution when you need a compact connection between a suppressor and a threaded muzzle. Its short profile and anti-carbon-lock design make it practical for shooters prioritizing consistent, low-profile suppressor installation and reduced overall length on range or competition setups.