CMMG ZEROED 556K Suppressor – .224 caliber, B Dapter HUB Mount, Nitride (11DB048)

The CMMG ZEROED 556K is a compact “K”-size centerfire suppressor built for 5.56mm / centerfire .22 caliber cartridges, machined from heat-treated 17-4 stainless steel with a nitride finish and a full-auto rating. This version ships with CMMG’s B Dapter HUB Mount installed. CMMG SKU 11DB048, UPC 840442510022. This listing is for the ZEROED 556K with B Dapter HUB Mount, SKU 11DB048 only.

Built In-House, Built to Last

CMMG makes ZEROED suppressors in-house in Missouri. The tubeless, laser-welded 17-4 stainless baffle stack is through-hardened and nitride finished to resist corrosion and erosion, and it is safe to clean with nearly any solvent or an ultrasonic cleaner. CMMG rates the ZEROED 556K for full-auto use (approximately 240 rounds between cooldown periods, per CMMG).

B Dapter HUB Mount

The included B Dapter is CMMG’s Plan B-pattern QD mount. It threads into the suppressor’s 1.375"-24 HUB rear and locks onto Plan B-pattern muzzle devices such as CMMG’s RBB and SVB. An inner taper seal keeps carbon off the threads and takes more force to remove than to install, so the suppressor resists backing off. Because the body is HUB-threaded, you can swap to another HUB mount later.

CMMG ZEROED 556K B Dapter Specifications

NFA Item

Suppressors are regulated under the National Firearms Act. Transfer requires an approved ATF tax-stamp application, and suppressors are not legal in every state.

Frequently Asked Questions

What mount comes with it?
One ZEROED B Dapter HUB Mount, which works with Plan B-pattern muzzle devices.

Which calibers is it rated for?
CMMG lists: .22 ARC, 5.56x45mm, 5.7x28mm, 4.6x30mm.

Can I use a different mount?
Yes. The body uses standard 1.375"-24 HUB threads.