YHM Fat Cat Suppressor – 5.56mm with Cat End Cap

YHM Fat Cat – Compact Form, Full-Auto Strength, and a Gift Card to Boot
The YHM Fat Cat is a short, stout, high-performance 5.56 suppressor with attitude. At just 4.5 inches in length with the sRx adapter installed, it’s a full inch shorter than the YHM Turbo K. That means less added length and more maneuverability without giving up sound performance.
Its oversized 1.94-inch diameter boosts internal volume, helping to produce a deeper, smoother tone than most cans in its size class. With a stainless steel body and Inconel blast baffle, the Fat Cat is fully auto-rated and built to handle high heat and volume. Backpressure is reduced with YHM’s updated baffle geometry, keeping your gas system happier under pressure.
This version ships with the Cat End Cap and includes a Mini sRx mount, plus two suppressor tools for setup and teardown.
Key Features & Benefits
Compact Performer: Measures only 4.5 in with adapter
HUB Mount Ready: Universal 1.375×24 rear threads for flexible setup
Built to Run: Full-auto rated and heat-tolerant with Inconel baffle
Smoother Tone: Larger diameter enhances tone and internal volume
Backpressure Control: Reduced blowback with new baffle design
Bonus Value: $100 Silencer Shop gift card included for a limited time
Technical Specifications:
Length: 4.25″ w/o adapter / 4.5″ w/ adapter
Diameter: 1.94″
Weight: 11.2 oz w/o adapter / 13.2 oz w/ adapter
Material: 17-4 Stainless Steel / Inconel
Mount: 1.375X24 HUB Interface
What’s in the Box:
YHM Fat Cat 5.56mm Suppressor w/ Cat End Cap
Mini sRx Mount
(2) Suppressor Tools
Owners Manual
How to Buy the YHM Fat Cat With Silencer Shop
Add the YHM Fat Cat to your cart. Include a tax stamp and Single Shot Trust if needed.
Visit a Powered by Silencer Shop dealer to complete your fingerprint scan and demographic info.
Upload your selfie and sign the emailed DocuSign from Silencer Shop.
Create or verify your ATF eForms account at eforms.atf.gov. Ensure your information matches your Silencer Shop profile.
Certify and submit your application with your local dealer for ATF processing. Your $100 gift card will be emailed after eForm 4 submission.