The BOSS Chairman 7.62 stainless standard end cap suppressor is the full-length .30 caliber Chairman configured for bolt guns and piston rifles (brand part no. CH-15080-762-SS-58-SE-BLK). BOSS specifies the standard cap for non-gas-blowback actions, and says bolt guns should use it. The stainless build uses 17-4 H900 baffles, mount and cap in a Grade 9 titanium tube and weighs 16 ounces without the mount. Coaxially vented baffles inspired by Nikola Tesla’s work route gas through the can for longer than a conventional stack. It is a natural fit for a .308 or 7.62mm bolt-action hunting or precision rifle that lives suppressed.

Key Specifications

• The caliber rating is .30 caliber, 7.62mm and .308, and BOSS says it also takes 300 Blackout rifles close to movie quiet.
• Dimensions are 1.5 inches by 8 inches, the full-length Chairman body that houses the complete baffle stack.
• Weight is 16 ounces without the mount in stainless, the figure BOSS publishes for this build.
• Baffles, mount and end cap are 17-4 H900 stainless steel inside a Grade 9 titanium tube, a pairing built for full-power rifle heat.
• This version carries the standard end cap, the option BOSS lists for non-gas-blowback actions such as bolt guns and piston rifles.
• The included mount is a 5/8-24 direct thread, and the suppressor also accepts any standard HUB 1.375-24 pattern mount.
• The finish is Glacier Black high-temperature Cerakote, rated by BOSS to 1800 degrees F.

Frequently Asked Questions

Is the standard end cap right for my bolt gun? Yes. BOSS says bolt guns should use the standard end cap, which is made for non-gas-blowback actions such as bolt guns and piston systems. For AR-10s and AR-15s it recommends the vented cap.

Do I need ATF approval to buy this? No. As of October 9, 2026, ATF no longer requires Form 4 approval, registration or a tax stamp for suppressors. It transfers on a Form 4473 with a background check through a Class 3 (SOT) dealer. State and local laws still apply.

Can I use a quick-detach mount? Yes. The Chairman ships with a 5/8-24 direct thread mount but accepts any standard HUB 1.375-24 pattern mount, such as the SilencerCo ASR Bravo or Dead Air Keymo, according to BOSS.

Buy the BOSS Chairman 7.62 Suppressor, Stainless, Standard End Cap

As of October 9, 2026, this suppressor transfers on a Form 4473 with a background check at your Class 3 (SOT) dealer, with no Form 4 or tax stamp; state and local laws still apply. Order through BOSS‘s suppressor lineup and our Lubbock, Texas team will handle the transfer.