The CMMG ZEROED 36K suppressor is the compact K-size version of CMMG’s .36 caliber/9mm can (CMMG part no. 11DB010). CMMG calls it overbuilt by both pistol and rifle standards, so it works on 9mm pistol caliber carbines and on rifle cartridges up to 8.6 BLK and 350 Legend, plus smaller calibers like 5.56mm and 300 BLK. Overall length is just 5.5 inches with the included direct thread mount, and weight is 13.5 ounces. The heat-treated 17-4 stainless body is nitrided and full-auto rated, and the HUB-compatible body accepts a QD system. It is the pick when you want the 36’s caliber range with less length out front.

Key Specifications

• Bore diameter is .36 caliber/9mm, from 9mm pistol calibers up through 8.6 BLK and 350 Legend.
• Overall length is 5.5 inches with the mount, or 5.2 inches without it.
• Weight is 13.5 ounces with the mount and 11 ounces without.
• Body diameter is 1.58 inches, slim enough for most handguards.
• Construction is heat-treated 17-4 stainless steel with a tubeless, laser-welded baffle design.
• The finish is nitride, a surface-hardening treatment that resists corrosion and is safe in an ultrasonic cleaner.
• The can is full-auto rated, with CMMG’s note of approximately 240 rounds between cooldown periods.
• Two mounts come in the box: one 1/2-28 and one 5/8-24 direct thread HUB mount, covering the two most common barrel threads.
• The body is 1.375-24 HUB compatible, so a QD mount and muzzle device system can be added later.
• A 3/8-inch square drive in the welded front cap works with 7/8-inch wrench flats on the mounts, so common tools handle mount changes.

Frequently Asked Questions

How is the 36K different from the standard ZEROED 36? The 36K is 5.5 inches and 13.5 ounces with the mount, against 6.5 inches and 17.1 ounces for the standard can. The bore and caliber ratings are the same.

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.

What are the minimum barrel lengths? CMMG lists 6.5 inches for 8.6 BLK, 10.5 inches for 350 Legend and 20 inches for 300 PRC.

Buy the CMMG ZEROED 36K Suppressor, .36 Caliber/9mm, Direct Thread

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 CMMG‘s silencers and suppressed firearms lineup and our Lubbock, Texas team will handle the transfer, and it ships fast to your Class 3 dealer. Short length is the point of the K, and it gives up none of the 36’s mounting options.