CMMG ZEROED 556K Suppressor, 5.5" Long, Heat Treated 17-4 Stainless Steel, 1.375"-24 HUB Compatible, Two Direct Thread HUB Mounts Included - 11DB015
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Needs an ATF Form 4, a $200 tax stamp and an approval wait. The dealer's fee is on top.
CMMG
Overview
The CMMG ZEROED 556K Suppressor is designed specifically for 5.56 NATO caliber firearms, measuring 5.5 inches in length. Made from heat-treated stainless steel, this suppressor features a HUB mount type, making it easy to attach and detach from compatible barrels. This suppressor is commonly used in AR-15 builds focused on precision shooting and noise reduction.
Specifications
CMMG ZEROED 556K Suppressor, 5.5" Long, Heat Treated 17-4 Stainless Steel, 1.375"-24 HUB Compatible, Two Direct Thread HUB Mounts Included - 11DB015
September 2026 on GunPartPicker
CMMG ZEROED 556K Suppressor, 5.5" Long, Heat Treated 17-4 Stainless Steel, 1.375"-24 HUB Compatible, Two Direct Thread HUB Mounts Included - 11DB015 ranked #16 of the 163 suppressors builders added on GunPartPicker in September 2026. Builders have been adding it to their builds on GunPartPicker since March 2026. All time, it ranks #32 of the 388 suppressors builders have added. Builds with this suppressor are nearly all chambered in 5.56 NATO, nearly all on carbine-length gas, and nearly all AR-15.
Availability is good: it was in stock at one retailer or another nearly every day in September 2026, and today 3 of the 5 retailers we track have it in stock. It dipped to $343.39 at BattleHawk Armory for a stretch in September 2026, well under its usual $549.95, so sales do come around. Buying today, the lowest price is $500.99 at KY Gun Company, above September's low of $343.39, so a better deal may come back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
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Frequently Built With
The part most often added in each category by the 21 builds that include this one
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Wilson Combat M16 Bolt Carrier Assy 5.56 NATO Polished Black Nitride
Builds Featuring This Part
See all 1 →Builds in the community that include the CMMG ZEROED 556K Suppressor, 5.5" Long, Heat Treated 17-4 Stainless Steel, 1.375"-24 HUB Compatible, Two Direct Thread HUB Mounts Included - 11DB015
| Build | Parts | Total |
|---|---|---|
 | 26 | $1605.59 |
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