YHM Fat Cat 5.56mm Suppressor | sRx QD | YHM-2200-MB-28

The Yankee Hill Machine (YHM) Fat Cat is a compact suppressor designed for .223 Rem/5.56 NATO firearms and ships with an sRx quick-detach adapter. It pairs a relatively large 1.94" body diameter with a short overall length to reduce muzzle report while preserving a short, maneuverable profile. The unit is listed as full-auto rated and includes a Mini sRx muzzle brake and the sRx 1/2" x 28 QD adapter.

Common applications include range training—where reduced muzzle report and controllable blowback make extended sessions more comfortable—and precision/competition shooting where a compact, repeatable mount is desirable.

Product Specifications

• The brand is Yankee Hill Machine.
• The model is listed as the Fat Cat.
• The manufacturer part number is YHM-2200-MB-28.
• The caliber is .223 REM/5.56 NATO.
• The outside diameter is 1.94 inches.
• The overall length is 4.25 inches and 4.50 inches with the sRx adapter installed.
• The mount/thread pattern is sRx 1/2×28 QD adapter.
• The construction is listed as steel.
• This model is specified as full-auto rated.
• The package includes a QD sRx adapter and Mini sRx muzzle brake.
• The finish is described as Matte Black.
• The recommended minimum barrel length for 5.56 NATO is 10 inches.
• The ATF classification is Silencer.
• The attachment method is Quick Detachable.
• UPC: 841812101772

The Fat Cat delivers a compact silencer profile with a large internal volume for its size, paired with a quick-detach sRx mount and a Mini sRx muzzle brake for a straightforward install and removal workflow. Its short length makes it an easy fit on shorter-barreled platforms while the larger diameter supports sound reduction for extended range sessions and precision work.

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