Guardian Defense556
5.56mm / .223 suppressor · HUB 1.375x24 interface · specs and compatibility from the manufacturer
Notable features
- HUB Compatible
- Full-Auto Rated
length
6.5″
weight
18.5oz
MSRP
$900
length
6.5″
weight
18.5oz
calibers
5.56
material
Steel · Inconel
interface
HUB 1.375x24
MSRP
$900
- Overall length
- 6.5″
- Diameter
- 1.61″
- Weight
- 18.5 oz
- Class
- 5.56mm / .223
- n
- 328
- Range
- 1.7 oz–27 oz
- Median
- 13 oz
- Material
- Stainless Steel / Inconel
- Finish / treatment
- DLC
- Max caliber
- 5.56mm / .223
- Base interface
- HUB 1.375x24
- Full-auto rated
- Yes
- MSRP
- $900
Heavier than most 5.56mm / .223 suppressors
Weight compared against the 328 5.56mm / .223 suppressors in the catalog that publish one. Quartile basis; a value inside the middle half carries no note.
Prices are manufacturer's suggested retail (MSRP). What you pay may differ.
- Base interface
- HUB 1.375x24
The HUB 1.375x24 is an open standard: 415 mounts and 818 muzzle devices in our catalog fit this suppressor, including Guardian Defense Direct Thread Mount (.578x28), AAC 51T S.T.A.M.P. Mount and AB Suppressor AB Raptor Adapter. You aren't locked into one manufacturer's parts.
Which ones fit your barrel and host?
Check in the BuilderManufacturer claim
- Full-auto and Force Reset Trigger (FRT) rated.
- Uses a universal HUB (1.375x24) mount interface for compatibility with common mounting systems.
- Built from 17-4 stainless steel and 718 Inconel with a DLC finish.
- Designed for 5.56 NATO and .223 Wylde rifles.
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- Ships with a 1/2x28 direct thread mount and a wrench.
- NFA item; ships only to an authorized FFL/SOT dealer and cannot ship to CA, DC, DE, HI, IL, MA, NJ, NY, or RI.