The Yankee Hill Machine Fat Cat is a compact suppressor designed for 5.56 NATO/.223 Rem applications. It features a short overall length and increased diameter to provide internal volume for improved sound characteristics while reducing blowback through revised baffle geometry. The unit ships with an sRx quick-detach adapter and a mini sRx muzzle brake for simple mounting on compatible 1/2×28 threaded muzzles.

Key Specifications

• The caliber is .223 Rem / 5.56 NATO.
• The overall length measures 4.25 inches.
• The outside diameter is 1.94 inches.
• The mount is a 1/2×28 sRx quick-detach adapter.
• The package includes a Quick Detach Mount and Mini sRx Muzzle Brake.
• The finish is Matte Black.
• The NFA attachment method is Quick Detachable.
• The minimum recommended barrel length for 5.56 NATO is 10 inches.
• This model is full auto rated.
• The model is the Fat Cat from YHM (Yankee Hill Machine).

Compact and purpose-built, the Fat Cat is intended for shooters who require a short-profile suppressor that balances internal volume with minimal length. Its quick-detach sRx mounting system and included mini muzzle brake provide practical options for field use where fast attachment and reliable performance are priorities. The Fat Cat is configured to meet rigorous use cases while maintaining a restrained, matte-black appearance.