Knights Armament 5.56 CRS-3 Suppressor Fde - 122776-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: 31528 Category: Suppressors
Experience unparalleled stealth and performance with the Knights Armament 5.56 CRS-3 Suppressor in FDE, engineered for the discerning tactical shooter who demands precision and reliability in every shot. This high-performance 5.56mm suppressor delivers exceptional sound and flash reduction, transforming your AR-15 into a whisper-quiet powerhouse without compromising on durability or balance.
Key Features
- Quick Detach (QD) Mounting System: Seamlessly attaches to compatible KAC QDC muzzle devices for rapid deployment and secure lockup, minimizing POI shift for consistent accuracy.
- Pressure Reduction Technology (PRT): Innovative vented chamber architecture reduces backpressure, ensuring reliable cycling on short-barreled rifles while enhancing overall suppressor efficiency.
- Premium Inconel Construction: Both baffles and body are crafted from rugged Inconel alloy, providing superior heat resistance and longevity for full-auto and high-volume fire.
- Flat Dark Earth (FDE) Finish: Durable cerakote coating offers corrosion resistance and a tactical aesthetic that blends seamlessly with modern rifle setups.
- Compact and Lightweight Design: At just 16 oz and 6.1 inches long, it adds minimal weight and length, maintaining maneuverability for close-quarters and dynamic shooting scenarios.
Specifications
- Caliber: 5.56mm NATO (.223/5.56/.224)
- Overall Length: 6.1 inches (15.5 cm)
- Addition to Bare Muzzle: 5.5 inches (14 cm)
- Weight: 16 oz (453.6 g)
- Sound Suppression: 135 dB SPL at 1m (left side)
- Baffle Material: Inconel
- Baffle Style: PRT-style vented chamber
- Body Material: Inconel
- User-Serviceable: No
- Finish: FDE Cerakote
- Dimensions (Width/Height): 1.55 inches
Why Choose the Knights Armament CRS-3 Suppressor?
In the world of 5.56 rifle suppressors, noise, flash, and recoil can disrupt your focus and reveal your position. The CRS-3 addresses these pain points head-on with its advanced PRT design, which not only tames muzzle blast to safer levels but also excels in flash hiding—ideal for low-light operations or night vision use. Unlike heavier alternatives, its lightweight build prevents fatigue during extended sessions, while the non-serviceable construction means less maintenance hassle for users prioritizing performance over tinkering. Whether you’re a competitive shooter seeking an edge or a tactical enthusiast valuing stealth, this suppressor elevates your firearm’s capabilities without the bulk.
Don’t settle for ordinary suppression—unlock the full potential of your 5.56 platform with the Knights Armament CRS-3 in FDE. Add it to your collection today and redefine what’s possible on the range or in the field.
Frequently Asked Questions
Is the CRS-3 suppressor hearing safe on a 5.56 rifle?
At 135 dB SPL, the CRS-3 significantly reduces noise but is not considered fully hearing safe for unsuppressed 5.56 fire. We recommend using ear protection for prolonged shooting to safeguard your hearing.
What muzzle devices are compatible with this QD suppressor?
The CRS-3 is designed for KAC’s QDC mounting system, including compatible flash hiders and muzzle brakes. Ensure your rifle is equipped with a KAC-approved device for optimal performance and safety.
Is the Knights Armament CRS-3 full-auto rated?
Yes, constructed from durable Inconel, the CRS-3 is built to withstand full-auto fire, making it suitable for high-intensity training and select-fire applications.
| Weight | 16 oz |
|---|---|
| Dimensions | 6.1 × 1.55 × 1.55 in |
| Mount Style | QD |
| Length (inches) | 6 |
| Caliber (Maximum) | .22 (.223/5.56/.224 |
| Baffle Material | Inconel |
| Baffle Style | PRT‑style vented chamber architecture |
| Body Material | Inconel |
| User-Serviceable | No |
| Finish | Black Oxide |
| MPN | 122776-FDE |
| UPC | 819064019640 |
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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