Knights Armament 5.56 CRS-1 Suppressor Fde - 121567-FDE
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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: 31524 Category: Suppressors
Experience elite performance with the Knights Armament 5.56 CRS-1 Suppressor in FDE, engineered for tactical shooters seeking superior sound and flash reduction without compromising firearm reliability. This quick-detach suppressor leverages advanced Pressure Reduction Technology (PRT) to minimize gas blowback and felt recoil, delivering a smoother shooting experience on your AR-15 or similar 5.56 platform.
Key Features
- Pressure Reduction Technology (PRT): Vented chamber design releases pressure before extraction, reducing wear on your firearm’s operating system and cutting down on toxic gas exposure to the shooter.
- Quick Disconnect (QD) Mounting: Seamlessly attaches to compatible KAC QDC muzzle devices, ensuring minimal point-of-impact shift for consistent accuracy during transitions between suppressed and unsuppressed firing.
- Exceptional Flash Suppression: Eliminates muzzle flash, including first-round pop, enhancing low-light visibility and concealment for tactical operations.
- Full-Auto Rated Durability: Constructed from rugged 718 Inconel for baffles and body, this suppressor withstands high-volume fire while maintaining structural integrity.
Technical Specifications
- Caliber: .223/5.56 NATO
- Length: 6.25 inches overall; adds 4.15 inches to QDC 3-prong flash hider
- Weight: 19.2 ounces
- Material: 718 Inconel (baffles and body)
- Mount Style: QD (KAC QDC compatible)
- Finish: Flat Dark Earth (FDE)
- User-Serviceable: No
- Sound Reduction: Up to 24 dB, significantly lowering report for hearing protection and stealth
Why Choose the Knights Armament 5.56 CRS-1 Suppressor?
Unlike traditional suppressors that increase backpressure and accelerate component wear, the CRS-1 addresses common pain points like excessive gas to the face and unreliable cycling. Its PRT design optimizes flow-through performance, preserving your rifle’s bolt speed and reducing maintenance needs. Ideal for professionals and enthusiasts alike, this 5.56 suppressor enhances accuracy, reduces recoil, and provides battle-proven reliability in demanding environments. Whether for home defense, range sessions, or tactical applications, it elevates your setup with unmatched signature management.
- Reduced Recoil and Fatigue: Lighter felt impulse means longer shooting sessions without strain.
- Enhanced Safety: Lower flash and gas blowback improve situational awareness and shooter comfort.
- Versatile Compatibility: Perfect for 5.56 rifles, ensuring broad use across your collection.
Upgrade your tactical arsenal today with the Knights Armament 5.56 CRS-1 Suppressor in FDE—precision engineering that delivers real-world advantages for the discerning shooter.
Frequently Asked Questions
Is the Knights Armament 5.56 CRS-1 Suppressor full-auto rated?
Yes, this suppressor is built with durable 718 Inconel construction to handle full-auto fire, making it suitable for high-intensity use while maintaining performance.
Does this suppressor affect my rifle’s accuracy?
No, the QD mounting system provides a secure, repeatable lockup with minimal point-of-impact shift, preserving your rifle’s inherent accuracy in both suppressed and unsuppressed modes.
How much does the CRS-1 reduce sound and flash?
It offers up to 24 dB of sound reduction and exceptional flash suppression, including first-round pop, significantly lowering the audible and visual signature for better stealth and hearing safety.
| Weight | 19.2 oz |
|---|---|
| Dimensions | 6.25 × 1.55 × 1.55 in |
| Mount Style | QD |
| Length (inches) | 6 |
| Caliber (Maximum) | .22 (.223/5.56/.224 |
| Baffle Material | Inconel |
| Baffle Style | PRT vented chamber design |
| Body Material | Inconel |
| User-Serviceable | No |
| Finish | Other |
| MPN | 121567-FDE |
| UPC | 819064018674 |
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.
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