SKU: CSSI|CA11DB015

CMMG Zeroed 556K Suppressor 5.56 5.2″ Black

**FFL Selection must have an SOT

5.56mm is one of the most ubiquitous calibers in the USA so why not have a dedicated suppressor for your 5.56mm firearm? Made to deliver maximum sound suppression on .22 caliber centerfire cartridges the ZEROD 556K keeps things light and tight with its compact "K" size footprint and direct thread mounts and an overall length of just 5.5".

Although reasonable in price the ZEROED 556K makes no compromises in quality. Full 17-4 stainless construction and a nitride finish means this suppressor resists fouling and corrosion like no other.  For easy disassembly the included direct thread mounts feature 7/8 wrench flats and the suppressor features a 3/8 square drive in the end cap.

All ZEROED suppressors are made 100% in house by CMMG in our facility allowing for maximum quality control and affordability.

Included In The Box:

  • Suppressor
  • (1) 1/2"-28 Direct Thread HUB Mount
  • (1) 5/8"-24 Direct Thread HUB Mount

*NFA Rules Apply

Features:

  • Caliber: .22 ARC 5.56x45mm 5.7x28mm 4.6x30mm
  • Finish: Nitride
  • Weight: 13.5 oz | 11 oz w/o mount
  • Length: 5.5" | 5.2" w/o mount
  • Diameter: 1.58"
  • HUB Compatible: Yes
  • Material: Heat Treated 17-4 Stainless Steel
  • Attachment: Direct Thread / HUB Mount
  • Minimum Barrel Length: 5.7x28mm: 5" | 5.56mm: 10.5"
  • Mount: (1) 1/2"-28 & (1) 5/8"-24 Direct Thread HUB Mounts
  • Full Auto Rated: Yes
  • Bore Diameter: .224 Caliber
SKU CSSI|CA11DB015 Category

CMMG Zeroed 556K Suppressor 5.56 5.2″ Black

$529.00

16 in stock

FAQ

BJ Firearms LLC is a federally licensed firearms business focused on providing quality firearms, accessories, and related services while promoting responsible ownership, education, and community engagement.

The company was founded to serve firearm enthusiasts with knowledgeable service, real-world experience, and a commitment to professionalism and safety.

We focus on real experience, personalized service, hands-on product knowledge, and community involvement — not just sales. Our goal is to help customers make informed decisions and feel confident with their equipment.

Yes. We operate as a federally licensed firearms dealer (FFL), following all applicable federal, state, and local regulations.

Yes. We partner with trusted suppliers to provide quality products and reliable sourcing.

Yes. We partner with content creators and industry professionals to provide real-world insights and experiences.

We work with everyone — from first-time buyers to experienced enthusiasts. Education and guidance are a big part of what we do.

We offer firearms, accessories, gear, and related equipment depending on availability and customer needs.

Yes. We help customers evaluate their needs, experience level, and intended use to find the right fit.

Yes. Depending on the request, we can help source specific products or assist with custom configurations.

Yes. We actively engage in hands-on experiences, demonstrations, and community-related firearm activities when possible.

Yes. We support content that helps people learn about equipment, safety, and responsible firearm ownership.

Social Media Posts

Via Vontaes_Gunz

Customer Reviews

“Outstanding customer service.” I had a lot of questions before buying, and they walked me through everything without pressure. Super knowledgeable and easy to work with. You can tell they actually care about their customers.
Verified Customer
“Best experience I’ve had buying gear.” Professional, responsive, and honest. They helped me choose exactly what I needed without overselling anything. I’ll definitely be coming back.
Verified Customer
“Great people, great service.” Very down-to-earth and easy to talk to. They explain things clearly and make sure you understand your options. Highly recommend, especially if you’re new.
Verified customer

BJ FIREARMS LLC

Age Verification Required.

You must be 18 or older to enter this website. By entering this website, you are agreeing to all policies and procedures.