Yankee Hill Machine Fat Cat 5.56Mm Suppressor W/ Srx Endcap
$621.25
$719.95
(You save
$98.70
)
- Caliber-Gauge:
- 223 Remington / 5.56 NATO
The Yankee Hill Machine Fat Cat 5.56mm suppressor with SRX endcap is a compact, full-auto-rated can engineered for shooters who want effective sound reduction without sacrificing rifle handling. Built from 17-4 stainless steel with a heat-treated 718 Inconel blast baffle, this 5.56 NATO suppressor delivers the durability and performance YHM is known for—in a package that measures just 4.5 inches with the SRX adapter installed. Whether you're shooting standard 5.56, training at the range, or running tactical drills, the Fat Cat cuts through the noise with a rated 141 dB SPL while keeping your rifle balanced and pointable.
The secret to the Fat Cat's compact size and pleasant tone lies in its 1.94-inch diameter, which creates ample internal volume for efficient sound suppression relative to its length. That's a full inch shorter than YHM's Turbo K model when adapters are factored in—a real difference when you're stacking it with optics or working in tight shooting positions. The revised baffle geometry cuts down on blowback, so you'll experience less gas in your face and a smoother recoil impulse, especially valuable if you're running unsuppressed drills in the future.
The Fat Cat comes ready to mount with the Mini SRX adapter (1-3/8-24 HUB interface), two suppressor tools, and YHM's Limited Lifetime Manufacturer's Warranty backing your investment. At 10.6 ounces bare, or 12.5 ounces with the adapter attached, it won't fatigue your rifle or slow your target acquisition. Requires a 10-inch minimum barrel on 5.56 NATO platforms. If you want to customize the look, the optional Cat's Ass endcap (YHM-2210) is available separately.
Key Features
- Full-auto rated construction for professional and tactical use
- 17-4 stainless steel body with heat-treated 718 Inconel blast baffle for durability and heat resistance
- Compact 4.5-inch overall length with SRX adapter—one inch shorter than Turbo K with adapter
- 1.94-inch diameter provides greater internal volume for lower, more pleasant tone
- Reduced blowback baffle geometry minimizes gas signature and cycling stress
- Mini SRX Mount with 1-3/8-24 HUB interface for quick changes
- Includes two suppressor service tools
- 141 dB SPL rating at the muzzle
- Optional Cat's Ass endcap available for custom aesthetics
Specifications
| Caliber | 5.56 NATO |
| Overall Length (bare) | 4.25 inches |
| Overall Length (with SRX adapter) | 4.5 inches |
| Outer Diameter | 1.94 inches |
| Weight (bare) | 10.6 oz |
| Weight (with adapter) | 12.5 oz |
| Material | 17-4 Ph Stainless Steel body; 718 Inconel blast baffle |
| Mount Type | SRX Adapter with 1-3/8-24 HUB Interface |
| Sound Level | 141 dB SPL |
| Minimum Barrel Length (5.56 NATO) | 10 inches |
| Full-Auto Rating | Yes |
| Included Accessories | Mini SRX Mount, 2 suppressor tools |
| Warranty | Limited Lifetime Manufacturer's Warranty |
Frequently Asked Questions
What barrel length do I need for the Fat Cat 5.56 suppressor?
You'll need a minimum of 10 inches of barrel on 5.56 NATO platforms to run the Fat Cat safely and legally.
What mount does the Fat Cat use, and can I swap it to other suppressors?
The Fat Cat comes with a Mini SRX Mount featuring a 1-3/8-24 HUB interface. This is YHM's quick-detach platform, and the adapter can be swapped between compatible YHM suppressors if you have multiple cans.
Is the Fat Cat suitable for full-auto or belt-fed weapons?
Yes, the Fat Cat is full-auto rated and designed to handle rigorous, sustained fire from automatic platforms.
Can I replace the endcap on the Fat Cat?
Yes. The Fat Cat is available with a standard endcap, and YHM offers the optional Cat's Ass endcap (YHM-2210) if you want to change the look or performance characteristics of the cap.
Firearm Shipments:
To buy rifles or shotguns, you must be 18 years old, and for handguns, actions, or receivers, the minimum age is 21. By placing an order for this firearm, you confirm that you are the legitimate transferee/buyer, meet the legal age requirements, and comply with all Federal, State, and local laws and regulations necessary to purchase this firearm.
We only ship firearms to valid Federal Firearms License (FFL) holders. At checkout we provide a FFL locator for your convenience.
We will need a copy of the FFL’s license to facilitate the process, kindly request your dealer to email us a copy of their FFL, as we cannot dispatch the firearm until we receive this document. It is imperative for the buyer to choose their FFL dealer, ensure they are willing to facilitate the transfer, and have them email their FFL copy to BOSQUE Outdoors. To avoid any confusion, the customer's name or order number must be mentioned in the email containing the FFL.
Email: [email protected]
- Prior to placing an order, it is the buyer's responsibility to understand and adhere to their state's firearm regulations.
- The buyer should verify with their receiving dealer that the chosen firearm is legally permissible in their state.
- The buyer is accountable for any transfer fees or background check charges imposed by the receiving dealer. If the designated dealer declines to accept the firearm delivery, the buyer assumes responsibility for shipping costs to retrieve the firearm and resend it to an accommodating dealer.
- Handguns will be shipped using air transportation, while long guns can be shipped using ground methods. If your order includes a mix of firearm and non-firearm items, BOSQUE Outdoors will send the firearm(s) to your selected FFL dealer and the remaining non-firearm items to your billing address.
- Firearms cannot be returned to BOSQUE Outdoors; please contact the manufacturer for warranty claims.
- Firearms refused by the FFL Dealer or which cannot be transferred due to a failed background check are subject to a $75 restocking fee plus 10% of the purchase price.
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