The BOSS Chairman K 7.62 titanium standard end cap suppressor pairs the shortest Chairman body with the lightest build, set up for bolt guns (brand part no. CK-15060-762-TI-58-SE-BLK). BOSS lists it at 8.9 ounces without the mount in a 1.5-inch by 6-inch body, and calls the titanium K practically weightless. The baffles, mount and cap are Grade 5 6Al4V titanium inside a Grade 9 titanium tube, with a 17-4 H900 stainless blast baffle. The standard cap is the BOSS choice for bolt guns, piston systems and other non-gas-blowback actions. Bolt-action hunters who carry a rifle all day are exactly who this configuration is for.

Key Specifications

• The caliber rating is .30 caliber, 7.62mm and .308, and BOSS says the K shines on subsonic 300 Blackout rifles.
• Dimensions are 1.5 inches by 6 inches, two inches shorter than the full-length Chairman.
• Weight is 8.9 ounces without the mount in titanium, the lightest figure BOSS lists for the Chairman family.
• Baffles, mount and end cap are Grade 5 6Al4V titanium inside a Grade 9 titanium tube, with a 17-4 H900 stainless blast baffle taking the first hit of gas.
• 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

Can I run this titanium K on an AR-10? This version has the standard cap, which BOSS specifies for non-gas-blowback actions. For AR-10s, AR-15s and similar gas impingement rifles BOSS 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.

How does the Chairman K compare with the full-length Chairman? The K is 6 inches long against the Chairman’s 8 inches, and BOSS lists it at 12 ounces in stainless or 8.9 ounces in titanium without the mount, against 16 and 11.5 ounces for the Chairman.

Buy the BOSS Chairman K 7.62 Suppressor, Titanium, 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.