The BOSS Chairman 7.62 stainless suppressor with a 5/8×24 mount and brake end cap is the maker’s flagship .30 caliber silencer set up for recoil control (brand part no. CH-15080-762-SS-58-BR-BLK). BOSS builds the Chairman around coaxially vented baffles inspired by Nikola Tesla’s designs, which route gas through the can for longer than a standard baffle stack. In stainless form it pairs 17-4 H900 baffles with a Grade 9 titanium tube at 16 ounces without the mount. The brake end cap gives the most muzzle control of the Chairman’s cap options, trading away some sound reduction. It suits a .308 or 7.62mm precision or field rifle where staying on target for the follow-up shot matters most.

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.
• The included mount is a 5/8-24 direct thread, and the suppressor also accepts any standard HUB 1.375-24 pattern mount.
• This version carries the brake end cap, which BOSS offers for maximum muzzle control at the cost of some sound suppression.
• The finish is Glacier Black high-temperature Cerakote, rated by BOSS to 1800 degrees F.

Frequently Asked Questions

What does the brake end cap trade off? BOSS offers the brake cap for maximum muzzle control with reduced sound suppression. For a gas gun BOSS recommends the vented cap, and bolt guns should use the standard cap.

Is the Chairman full-auto rated? Yes. BOSS lists the Chairman as full-auto rated with no barrel-length restrictions, and it is factory serviceable.

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.

Buy the BOSS Chairman 7.62mm Stainless Suppressor, 5/8×24, Brake 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.