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The Dead Air Silencers Sandman-L is a 7.62mm suppressor built for shooters who refuse compromise on sound reduction or durability. Whether you're running a .308 AR, a tactical bolt gun, or any rifle up to .300 RUM, this is a professional-grade suppressor engineered for hard use and serious performance. At 8.9 inches long and 21.8 ounces, the Sandman-L delivers genuine 31dB sound reduction with standard 7.62 ammunition—making it one of the quietest suppressors in its class without sacrificing the ruggedness needed for heavy daily use.
The real standout is the KeyMo quick-detach system: one-hand installation and removal in seconds, with virtually no wobble, no seizing, and minimal point-of-impact shift. Once you mount it, it stays put. The suppressor core is built from Cobalt 6 baffles welded solid to a 17-4 stainless steel tube, then finished in Black Cerakote for corrosion protection. The mount itself is Nitride-finished 17-4 stainless, engineered to outlast lighter alternatives. The Sandman-L ships with a .30 caliber front cap and a 5/8-24 KeyMo muzzle brake, but you can swap front caps to change performance or add a flash hider if you need additional flash signature reduction.
Dead Air built this suppressor for military and law enforcement use, which tells you what they expect from it. It's full-auto rated and handles the punishment of repeated heavy fire without degradation. If you're serious about suppression—whether for range work, hunting, or tactical applications—the Sandman-L is engineered to keep working year after year.
| Caliber Rating | Up to .300 RUM |
| Length | 8.9 inches |
| Diameter | 1.5 inches |
| Weight | 21.8 ounces |
| Sound Reduction | 31dB (standard 7.62 ammunition) |
| Energy Rating | 4200 ft-lbs |
| Baffle Material | Cobalt 6 |
| Core Material | 17-4 PH Stainless Steel (welded), Stainless Steel Tube |
| Finish | Black Cerakote body; Nitride-finished attachments |
| Mounting System | KeyMo quick-detach |
| Included Mount | 5/8-24 KeyMo muzzle brake |
| Full-Auto Rated | Yes |
| Barrel Length Restrictions | None |
The Sandman-L is rated for calibers up to .300 RUM, which covers .308 Winchester, 5.56 NATO, 6.5 Creedmoor, and most common rifle cartridges in the 7.62mm/.30 caliber family. It has no barrel length restrictions, so it works on short-barreled rifles (SBRs), hunting rifles, and tactical platforms alike. As long as your rifle uses a 5/8-24 muzzle threading (or you have an appropriate KeyMo muzzle device), the Sandman-L will mount.
The Sandman-L delivers 31dB of sound reduction when firing standard 7.62 ammunition. This makes it one of the quietest 7.62 suppressors available. Real-world sound reduction varies depending on ammunition type, barrel length, and specific rifle, but the Cobalt 6 baffle design is optimized for maximum sound suppression in this class.
Yes. The Sandman-L features interchangeable front caps. It ships with a .30 caliber front cap, and you can install a flash hider front cap or E-Brake cap to suit your needs. Check Dead Air's accessory offerings for compatible cap options.
The Sandman-L uses Dead Air's KeyMo quick-detach system. Installation and removal are one-handed and take just seconds—no tools required. The mount features a Nitride-finished 17-4 stainless steel construction that resists seizing and wobble, so you get a solid, repeatable connection with minimal point-of-impact shift. The included mount is a 5/8-24 KeyMo muzzle brake, and the system is compatible with any KeyMo muzzle device from Dead Air.


SKU: 152829009 • Depth: 8.9in