Dead Air Mask 22 HD

Dead Air Mask 22 HD

The Dead Air Mask 22 HD is a direct-thread rimfire suppressor rated for .22 LR, .22 Magnum, 17 HMR, 17 WSM, and 5.7x28. It weighs 6.6 ounces, measures 5.1 inches in length, and is built from a Grade 9 titanium tube with 17-4 PH stainless steel baffles. It is full-auto rated for .22 LR with no barrel length restrictions.

If you are new to suppressors and want to understand the purchase process before adding to cart, read our complete guide to buying a suppressor online. 
 

What Makes the Dead Air Mask 22 HD Different

Most rimfire suppressors make a compromise somewhere. The Mask 22 HD does not. Dead Air built it to lead the category on sound suppression, materials quality, and user serviceability from day one.

The Grade 9 titanium tube keeps total weight at 6.6 ounces without sacrificing durability. The 17-4 PH stainless steel baffles tolerate aggressive cleaning methods including brushes and ultrasonic tanks, which aluminum or lower-grade steel baffles cannot withstand. The click-together baffle stack uses proprietary external standoffs that minimize contact with the tube wall, so the baffles slide out cleanly even after heavy fouling. Rimfire ammunition is inherently dirty. The Mask 22 HD is built with that reality in mind.

Sound suppression is consistently rated among the best in the rimfire category. The Mask 22 HD produces little to no first-round pop on both rifles and pistols. First-round pop occurs when oxygen trapped inside the suppressor combusts on the initial shot, producing a louder-than-normal report. The Mask 22 HD eliminates this on both rifle and pistol hosts, making it one of the few rimfire cans that perform equally well across platforms.

Want to compare models? See our comparison guide on Dead Air Mask 22HD vs. RXD 22TI. 

Dead Air Mask 22 HD Specifications

Every spec below comes straight from Dead Air Silencers.

• Caliber rating: .22 LR, .22 Magnum, 17 HMR, 17 WSM, 5.7x28
• Energy rating: 850 ft-lbs
• Bore diameter: .22 caliber
• Overall length: 5.1 inches
• Diameter: 1.070 inches
• Weight: 6.6 ounces
• Tube material: Titanium 3Al-2.5V Grade 9
• Baffle material: 17-4 PH stainless steel
• Mount type: Direct thread
• Thread pitch: 1/2x28
• Barrel restrictions: None
• Full-auto rated: Yes (.22 LR only; all other calibers semi-auto)
• Available finishes: Black Cerakote, FDE Cerakote, Satin bead-blasted
• Part number: MASK22
   

What's in the Box

Every Dead Air Mask 22 HD ships with the following:

• Dead Air Mask 22 HD suppressor
• 1/2x28 direct thread mount
• Front cap removal tool
• Owner's manual
   

Compatible Hosts and Caliber Notes

The Dead Air Mask 22 HD uses a 1/2x28 direct thread mount with no minimum barrel length requirement. It is compatible with any rimfire pistol or rifle with a 1/2x28 threaded barrel, including the Ruger 10/22, Ruger Mark series, and CZ 457.

The 5.7x28 rating extends compatibility to the FN Five-seveN pistol and FN PS90 carbine. Confirm the host barrel is threaded at 1/2x28 before mounting. Full-auto use is approved for .22 LR only. All other supported calibers are semi-auto rated. The 850 ft-lb energy ceiling covers standard .22 LR, .22 Magnum, 17 HMR, 17 WSM, and 5.7x28 loads within spec.

For hosts with non-standard thread patterns, Dead Air Mask adapters are available separately to expand compatibility. 
 

Who the Dead Air Mask 22 HD Is Best For

The Mask 22 HD is the right suppressor for rimfire shooters who run their can regularly, not just occasionally.

It is well-suited for NRL22 competitors who need consistent suppression with no accuracy penalty, high-volume backyard and pest control shooters who put rounds through their suppressor frequently and need something that cleans easily, rimfire training setups where full-auto capability and long-term durability matter, and FN Five-seveN or PS90 owners looking for one of the few rimfire-category cans rated for 5.7x28.

The serviceability argument is practical, not marketing. Rimfire produces more fouling than centerfire. Suppressors that cannot be fully disassembled eventually underperform as lead and carbon build up in the baffle stack. The Mask 22 HD breaks down to individual baffles using the included end cap tool with no special equipment required. 
 

Frequently Asked Questions: Dead Air Mask 22 HD

What calibers is the Dead Air Mask 22 HD rated for?

The Dead Air Mask 22 HD is rated for .22 LR, .22 Magnum, 17 HMR, 17 WSM, and 5.7x28, with an 850 ft-lb energy ceiling and no barrel length restrictions.

Is the Dead Air Mask 22 HD user serviceable?

Yes. The Mask 22 HD disassembles fully to individual baffles using the included front cap removal tool. No additional tools are required. The proprietary baffle standoff design allows clean removal even after heavy fouling.

Is the Dead Air Mask 22 HD full-auto rated?

Yes, for .22 LR. All other supported calibers, including .22 Magnum, 17 HMR, 17 WSM, and 5.7x28, are semi-auto rated only.

What thread pitch does the Dead Air Mask 22 HD use?

The Dead Air Mask 22 HD uses a 1/2x28 direct thread mount, which is the standard thread pitch for most rimfire rifles and pistols with threaded barrels.

What finishes are available for the Dead Air Mask 22 HD?

The Dead Air Mask 22 HD is available in three finishes: Black Cerakote, Flat Dark Earth (FDE) Cerakote, and Satin bead-blasted.

Does the Dead Air Mask 22 HD work on a 5.7x28 host?

Yes. The Mask 22 HD is rated for 5.7x28 within its 850 ft-lb energy ceiling. Verify the host barrel is threaded at 1/2x28 before mounting.