The Dead Air KeyMo Zero Mount .578×28 (Dead Air part no. DA322) is a lightweight, minimalist quick detach muzzle mount. Dead Air says the shorter size reduces how far it enters the blast chamber, which helps sound performance and keeps weight down. It is cut for .578×28 with a .458 bore, and the suppressor can be removed without carbon locking onto the mount. It is compatible with all Dead Air KeyMo and KeyMicro adapter equipped silencers, and it is a good match for a .45 caliber host with the .578×28 thread.

Key Specifications

• The thread pitch is .578×28, the pitch of this version of the KeyMo Zero.
• The through bore is .458, as Dead Air lists for the .578×28 mount.
• Overall length is 1.385 inches, short enough to limit its entrance into the blast chamber.
• The outside diameter is 1.08 inches, a compact profile.
• Weight is 2.1 ounces for the .578×28 version.
• Material is 4140 heat-treated chromium-molybdenum steel, a durable alloy for a mount.
• The finish is black nitride, which adds corrosion and wear resistance.
• The mount has a 3/4 wrench and socket feature, so installation takes ordinary tools.
• It is compatible with all Dead Air KeyMo and KeyMicro adapter equipped silencers.
• It resists carbon locking, so the suppressor comes off without seizing to the mount.

Frequently Asked Questions

What thread is this KeyMo Zero? This version is .578×28 with a .458 bore. Dead Air also makes the KeyMo Zero in 1/2-28, 5/8-24, 9/16-24 RH and 11/16-24.

Which silencers does it work with? All Dead Air KeyMo and KeyMicro adapter equipped silencers.

Is there anything to watch for when mounting it? Dead Air notes that you should consider the caliber limitations of the suppressor when mounting the KeyMo Zero on your rifle.

Buy the Dead Air KeyMo Zero Mount .578×28, .458 Bore

The KeyMo Zero is the lightest way into the KeyMo system, and the .578×28 version covers .45 caliber hosts with that thread. It comes off cleanly without carbon locking. See the silencer parts and accessories lineup for adapters and more, and order from our Lubbock, Texas gun shop for fast shipping.