Description and Specs

ZEROED 556K Suppressor from CMMG is purpose-built for 5.56mm and other .22 caliber centerfire cartridges. Compact, durable, and highly effective, this “K” sized suppressor measures just 5.5” in length and is constructed entirely from heat-treated 17-4 stainless steel with a corrosion-resistant nitride finish. Whether you're looking to keep your build light or reduce your sound signature, the 556K delivers with full-auto rated performance and a robust tubeless, laser-welded baffle design.

The ZEROED 556K comes ready with both 1/2x28 and 5/8x24 direct thread HUB mounts, and it's fully compatible with 1.375x24 HUB mounting systems—giving you the flexibility to use your preferred quick-detach setups. Designed for user-friendly maintenance, the suppressor features 7/8” wrench flats on the HUB mount and a 3/8” square drive on the end cap for easy disassembly using common tools. Made 100% in-house at CMMG’s facility, this suppressor ensures top-tier quality control at an affordable price. With a minimum barrel length requirement of 10.5” for 5.56mm and 5” for 5.7x28mm, the ZEROED 556K is an ideal, rugged solution for your next suppressed build.

What's in the box?

  • CMMG Zeroed 556k Suppressor
  • 1/2x28 Direct Thread HUB Mount
  • 5/8x24 Direct Thread HUB Mount
Length:
5.5" | 5.2" w/o mount
Diameter:
1.58"
Weight:
13.5 oz | 11 oz w/o mount
Material:
Heat Treated 17-4 Stainless Steel
Brand:
CMMG
Caliber:
5.56
Caliber Range:
4.6x30mm to 5.7x28mm
Color:
Black
Finish:
Nitride
Full Auto Rated:
yes
Mount Style:
direct thread Hub