YHMFat Cat
5.56mm / .223 suppressor · HUB 1.375x24 interface · specs and compatibility from the manufacturer
Notable features
- HUB Compatible
- TBAC Summit Tested
- Stellite
- Full-Auto Rated
length
4.25″
weight
11.2oz
MSRP
$740
length
4.25″
weight
11.2oz
calibers
5.56
material
Steel · Stellite
interface
HUB 1.375x24
MSRP
$740
- Overall length
- 4.25″
- Class
- 5.56mm / .223
- n
- 373
- Range
- 2.5″–9.75″
- Median
- 6.2″
- Diameter
- 1.94″
- Class
- 5.56mm / .223
- n
- 359
- Range
- 1″–2.2″
- Median
- 1.6″
- Weight
- 11.2 oz
- Material
- 17-4 Ph SS/Cobalt 6
- Max caliber
- 5.56mm / .223
- Base interface
- HUB 1.375x24
- Front cap
- Fixed
- Full-auto rated
- Yes
- MSRP
- $740
Shorter than most 5.56mm / .223 suppressors
Length compared against the 373 5.56mm / .223 suppressors in the catalog that publish one. Quartile basis; a value inside the middle half carries no note.
Wider than most 5.56mm / .223 suppressors
Diameter compared against the 359 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
- Front cap
- Fixed
The HUB 1.375x24 is an open standard: 489 mounts and 934 muzzle devices in our catalog fit this suppressor, including YHM 45 Cal HD 3-Lug HUB Adapter, 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 BuilderThe Thunder Beast Silencer Summit fires every suppressor entered on the same gun, with the same equipment. Fat Cat was measured in 2 tests. Figures can only be compared with others from the same test, so each one links to everything else fired on that gun.
Gas-operated rifles and carbines
Measurements published by Thunder Beast Arms Corp. How to read these
Manufacturer claim
- The Fat Cat has a decibel rating of 139 dB.
- The Fat Cat received the NTOA Member Tested and Recommended designation in 2023.
- Decibel rating: 139 dB.
- NTOA Member Tested and Recommended 2023.
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- The Fat Cat is a full inch shorter than YHM's Turbo K model when the included adapter is installed.
- The Fat Cat features unique baffle geometry that yields reduced blowback compared to conventional designs.
- The 1.94″ diameter creates more internal volume resulting in a lower, more pleasant tone.
- The Fat Cat is threaded to the popular 1.375″x24 HUB thread for broad mount compatibility.
- Available in either standard or Cat's Ass endcap configuration.
- Mount: sRx® 1/2″x28 Mini Q.D. Muzzle Brake and HUB Adapter.
- Full-Size Performance in a compact package The distinctive YHM Fat Cat® for 5.56 NATO sports unique baffle geometry that yields reduced blowback.
- The Fat Cat is a compact suppressor with great sound, and its 1.94″ diameter creates more internal volume resulting in a lower, more pleasant tone.
- Plus it's a full inch shorter than our Turbo K model with its included adapter.
- The Fat Cat is constructed from heat treated 17-4 stainless steel for durability and strength.
- Features a Cobalt 6 blast baffle, chosen for its heat and erosion resistance at the highest-stress point in the suppressor.
- Construction: 17-4 Ph SS/Cobalt 6.
- The Fat Cat is Full-Auto rated and designed for rigorous use.
- Full Auto Rated.
- The Fat Cat is optimized for 5.56 NATO platforms with a minimum barrel length of 10″ for full-auto rated use.
- Ships with an sRx™ Q.D. Adapter, sRx™ 1/2″x28 Mini Q.D. Muzzle Brake, and 2 suppressor wrenches.
- Ships with an sRx™ Q.D. Adapter, sRx™ 1/2″x28 Mini Q.D. Muzzle Brake and 2 suppressor wrenches.
- The minimum barrel length for 5.56 NATO use is 10″, which also qualifies for the full-auto rating.
- Caliber: 5.56mm.
- Minimum barrel lengths: 5.56 NATO: 10″.