CAT ST HUB Inconel 718 5.56mm Suppressor - No Mount - CATSTHUB718
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THIS IS A CLASS 3 NFA ITEM. ALL NFA RULES APPLY, this product requires a Federal Firearms License (FFL) and a Special Occupational Tax Stamp (SOT) to be on file. It is the purchaser’s responsibility locate a properly licensed FFL. If we do not have a copy of the clearly signed and dated FFL/SOT, you may email them to [email protected] or use our FFL submission form. Read more about our process here.
NFA Item Cancellation & Refund Policy
Cancellations with Full refunds of NFA items are only possible if a cancellation request is received & acknowledged before the transfer process has been initiated. Initiation of the transfer process is defined as: The ATF form 3 which allows us to transfer the NFA item to your selected dealer has been submitted to the ATF. The ATF form 3 submission typically occurs 1-3 days after your order is placed, depending on order volume and processing times. Cancellations and partial refunds are still possible up until the point the NFA item is shipped to your FFL dealer. Below are the fees that will apply at the various stages of NFA item order processing:
- Order Received – Form 3 not yet submitted: Full refund
- Form 3 Submitted – Not yet approved by ATF: 10% Processing Fee
- Form 3 Approved by ATF – Item not Shipped: 20% Processing Fee
- Form 3 Approved by ATF – Item shipped: No refund
- Form 4 Submitted – Disapproved/Returned without action: 35% Processing Fee + return shipping costs*
*NOTE: This may not always be possible and requires us to successfully recover the NFA item from your dealer with original packaging and in NEW condition. If we are unable to recover the NFA item in the condition stated above, no refund is possible.
This policy is only a guideline and subject to change depending on certain situations. There is significant time and effort involved by both AR15Discounts and your selected dealer to reacquire the item once the ATF form 3 has been submitted and approved.
SKU: 33311 Category: Suppressors
Elevate your 5.56mm shooting experience with the CAT ST HUB Inconel 718 Suppressor – No Mount, a cutting-edge solution engineered for superior sound suppression, flash reduction, and versatility across AR-15 platforms. Crafted from premium 3D-printed Inconel 718, this suppressor delivers unmatched durability and performance, allowing you to shoot quieter, cooler, and with less recoil on barrels from 10.3 inches and up – without the need for custom tuning.
Key Features
- Advanced SBX Internal Architecture: Optimizes gas flow for exceptional muzzle suppression and minimal backpressure, reducing toxic fumes and ensuring a flatter shooting platform ideal for extended sessions.
- 3D-Printed Inconel 718 Construction: Provides exceptional resistance to corrosion, erosion, and high temperatures, making it perfect for full-power 5.56mm loads in demanding conditions like full-auto fire or high-volume training.
- HUB-Compatible Design (1.375×24 Threading): Seamlessly integrates with the industry-standard HUB ecosystem, offering flexibility to pair with your preferred muzzle devices for quick swaps and broad compatibility.
- NVG-Friendly Flash Suppression: Virtually eliminates muzzle flash, even on shorter barrels, enhancing low-light performance and situational awareness during tactical operations.
- Versatile Barrel Length Compatibility: Performs consistently across short (10.3″+), mid, and full-length barrels, solving the common pain point of platform-specific suppressors that underperform on varied setups.
Specifications
- Caliber: 5.56mm NATO (Maximum: 6mm ARC)
- Length: 6.0 inches
- Diameter: 1.60 inches
- Weight: 17.5 oz
- Material: Inconel 718 (Baffles)
- Finish: DLC
- Mount Style: 1.375×24 HUB (No Mount Included)
- User-Serviceable: No
- Minimum Barrel Length: 10.3 inches (Inconel)
Why Choose the CAT ST HUB Suppressor?
In a market flooded with generic cans, the CAT ST stands out by addressing real shooter frustrations: inconsistent suppression on different barrel lengths, excessive heat buildup, and visible flash that compromises stealth. This suppressor not only tames the sharp crack of 5.56mm for hearing protection and neighbor-friendly range days but also enhances accuracy and control through reduced recoil and gas blowback. Built for the serious tactician or enthusiast, its robust Inconel build ensures longevity under abuse, while the HUB interface future-proofs your investment with modular mounting options. Whether you’re running a 14.5-inch MK18 or a 16-inch duty rifle, experience the difference in a suppressor that adapts to you.
Ready to suppress like a pro? Secure your CAT ST HUB Inconel 718 5.56mm Suppressor today and transform your firearm into a precision tool for any scenario.
Frequently Asked Questions
What makes the CAT ST different from other 5.56 suppressors?
This model features SBX architecture for optimized performance across barrel lengths, providing better sound and flash reduction without tuning, unlike many competitors that excel only on specific setups.
Is the CAT ST rated for full-auto use?
Yes, the Inconel 718 construction is designed to handle sustained full-auto fire, with high heat and pressure tolerance for reliable performance in high-volume shooting.
Does it require a specific mount, and what’s included?
It uses the 1.375×24 HUB standard for compatibility with various devices, but no mount is included – allowing you to choose based on your needs.
| Weight | 17.5 oz |
|---|---|
| Dimensions | 6 × 1.6 × 1.6 in |
| Mount Style | Other |
| Length (inches) | 6 |
| Caliber (Maximum) | .22 (.223/5.56/.224, etc.) |
| Baffle Material | Inconel |
| Baffle Style | Monolithic 3D-Printed (SBX Technology) |
| Body Material | Inconel |
| User-Serviceable | No |
| Finish | DLC |
| MPN | CATSTHUB718 |
| UPC | 850059086209 |
Compliance
NFA (National Firearms Act) compliance is crucial for legal ownership and transfer of regulated firearms and accessories like short-barreled rifles, suppressors, and certain types of ammunition, ensuring adherence to federal regulations to avoid legal penalties and ensure responsible firearm ownership.
Please select an FFL from the table below, if you do not see your desired FFL, click "Set Later" and you will be able to enter your FFL's information after checkout.
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