The BOSS Chairman K 7.62 titanium vented end cap suppressor is the lightest build in the Chairman family, configured for gas impingement rifles (brand part no. CK-15060-762-TI-58-VE-BLK). BOSS publishes 8.9 ounces without the mount for the titanium K, in a 1.5-inch by 6-inch body. Grade 5 6Al4V titanium baffles, mount and cap sit inside a Grade 9 titanium tube with a 17-4 H900 stainless blast baffle. The vented cap is the BOSS recommendation for AR-10s and AR-15s, where it cuts back pressure and gas exposure. It is the version to choose when every ounce on a short gas gun counts.

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 vented end cap, the option BOSS lists for gas blowback actions such as a traditional AR-15.
• 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

Does the Chairman K have a barrel-length restriction? No. BOSS lists the Chairman K 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.

How much does the titanium Chairman K weigh? BOSS lists the titanium Chairman K at 8.9 ounces without the mount, against 12 ounces for the stainless Chairman K.

Buy the BOSS Chairman K 7.62 Suppressor, Titanium, Vented 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 rifle suppressor lineup and our Lubbock, Texas team will handle the transfer, and it ships fast to your Class 3 dealer.