The Dead Air KeyMo Zero Mount (brand part number DA321) is a 45-caliber threaded mount built on Dead Air’s Key Mount platform, the same quick-attach system that lets shooters lock a Sandman-series suppressor onto a firearm in seconds. Threaded 5/8-24, it is designed as the muzzle-end foundation for a Dead Air Key Mount-equipped suppressor, giving .45-caliber owners a repeatable, quick-detach mounting point without a separate adapter. As a dedicated silencer accessory, it is meant to be paired with a compatible Dead Air suppressor rather than run as a standalone muzzle device.

Key Specifications

• Threaded 5/8-24 for .45-caliber threaded barrels.
• Rated for .45 caliber projectiles.
• Built on the Key Mount quick-attach platform.
• Provides a repeatable, quick-detach mounting point for a compatible suppressor.
• Classified as a silencer accessory, meant to pair with a Key Mount-equipped can.
• Weighs approximately 0.15 lb, adding minimal mass to the muzzle.

Frequently Asked Questions

What is the Key Mount system? It is Dead Air’s quick-attach mounting platform that lets a compatible suppressor lock onto the firearm in seconds.

What caliber is this mount rated for? .45 caliber.

What thread pattern does it use? Standard 5/8-24.

Buy the Dead Air KeyMo Zero Mount, .45 Cal

Set up a repeatable Key Mount attachment point on a .45-caliber build. Order it from our Class 3 parts and accessories selection at our Lubbock, Texas gun shop for fast, direct shipping.