Dead Air Silencers Sandman X Keymo Suppressor

What Makes the Dead Air Sandman X Different?

The Sandman X is the tenth-anniversary evolution of the Sandman series and the first Sandman suppressor built using additive manufacturing. That distinction matters beyond marketing. Traditional suppressor manufacturing relies on machining and welding, which place hard limits on internal geometry and introduce potential failure points at weld seams. Additive manufacturing removes those constraints. The result is a monolithic Haynes 282 body with internal architectures that are impossible to produce through conventional methods.

Haynes 282 is a nickel-based superalloy developed for aerospace applications, specifically for environments involving extreme heat, pressure, and thermal cycling. It offers a combination of high-temperature strength, oxidation resistance, and fatigue resistance that standard 17-4 PH stainless steel cannot match. Dead Air chose this material for the Sandman X after using it successfully on the Lazarus 6. The result is a suppressor body capable of handling full-auto fire and extreme firing schedules without the structural fatigue concerns associated with welded stainless construction.

Inside the Sandman X are two patent-pending Triskelion baffles and three cone baffles, surrounded by the Triskelion Gas Management System. This design does three things simultaneously: it reduces peak sound pressure at both the muzzle and the shooter's ear, it directs propellant gases out the front of the suppressor to substantially eliminate muzzle flash, and it minimizes back-pressure to the host firearm's operating system, reducing gas blowback, bolt carrier group wear, and felt recoil impulse. Patents 20230228513 and 11441867B2 cover this architecture.

Dead Air Sandman X Specifications

Dead Air builds to tight tolerances. Here's exactly what you're getting.

• Caliber rating: Up to .300 Remington Ultra Magnum
• Energy rating: 4,200 ft-lbs
• Bore diameter: .30 caliber
• Length: 6.9 inches (KeyMo)
• Diameter: 1.65 inches
• Weight:16.8 oz (KeyMo)
• Body material: Haynes 282 (additive manufactured)
• Rear interface: HUB 1.375x24
• Finish: Black Cerakote 
• Usage rating: Professional-grade heavy-duty
• Barrel restrictions: None
• Full-auto rated: Yes
• Cleaning interval: Every 4,000 rounds per Dead Air
• Patents: 20230228513 and 11441867B2

What's in the Box

The Sandman X ships with everything needed to mount to a 5/8x24 threaded barrel out of the box. Contents vary by configuration.

Sandman X Xeno (SMXXNBLK / SMXXNFDE):

• Sandman X suppressor
• Xeno adapter
• 5/8x24 3-prong flash hider
• Shims
• TL Tool Pack
• Owner's manual

Sandman X KeyMo (SMXKMBLK / SMXKMFDE):

• Sandman X suppressor
• KeyMo adapter
• 5/8x24 KeyMicro 3-prong flash hider
• TL Tool Pack
• Owner's manual