Knights Armament 5.56 CRS-3 Suppressor Black - 122776-BLK
Only 1 left in stock
View restrictions
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: 31527 Category: Suppressors
Experience elite-level sound and flash suppression with the Knights Armament 5.56 CRS-3 Suppressor in Black, engineered for tactical professionals and discerning shooters who demand uncompromising performance from their AR-15 platforms. This military-grade rifle suppressor delivers exceptional signature reduction while maintaining weapon reliability, making it the ideal choice for high-stakes operations or range sessions where discretion and durability are paramount.
Key Features
- Quick Detach (QD) Mounting System: Seamlessly attaches to compatible 5.56 QDC flash hiders for rapid deployment and secure lockup, ensuring minimal point-of-impact shift during extended use.
- Advanced PRT-Influenced Vented Chamber Design: Utilizes proprietary Pressure Reduction Technology to drastically cut back pressure, reducing gas blowback to the shooter and preserving the rifle’s cycling performance even under full-auto fire.
- Superior Flash Suppression: Virtually eliminates muzzle flash on subsequent rounds (0.05 mcd*s), providing a tactical edge in low-light environments by concealing your position.
- Robust Inconel Construction: Both baffles and body are crafted from high-strength Inconel alloy, offering exceptional resistance to heat and erosion for lifelong durability in demanding conditions.
- Non-Serviceable Design: Built to perform without user maintenance, minimizing downtime and ensuring consistent suppression over thousands of rounds.
Technical Specifications
- Caliber: 5.56mm / .223 Rem (maximum)
- Length: 6.1 inches overall; adds 5.5 inches to bare muzzle
- Weight: 16 ounces
- Finish: Black Oxide
- Sound Reduction: 135 dBA at 1 meter (left side); 134 dBA at shooter’s ear
- Dimensions: 1.55 inches diameter
Why Choose the Knights Armament 5.56 CRS-3 Suppressor?
In the world of 5.56 rifle suppressors, the CRS-3 stands out by addressing common shooter pain points like excessive gas to the face and visible muzzle flash. Its innovative vented chamber not only quiets shots to hearing-safe levels but also enhances control by mitigating recoil and back pressure, allowing for faster follow-up shots and improved accuracy. Whether you’re navigating close-quarters scenarios or honing skills at the range, this suppressor transforms your firearm into a more versatile, operator-friendly tool without compromising on weight or balance. Trusted by elite forces for its proven track record, the CRS-3 delivers the reliability and performance that serious enthusiasts expect from Knights Armament.
Frequently Asked Questions
Q: Is the CRS-3 suppressor compatible with my AR-15?
A: Yes, it mounts via Knights Armament’s QD system on 5.56 QDC-compatible flash hiders, ensuring a secure fit for most standard AR-15 configurations.
Q: Does this suppressor affect rifle accuracy or reliability?
A: The design minimizes point-of-impact shift and back pressure, maintaining your rifle’s inherent accuracy and reliable cycling across various ammunition types.
Q: How effective is it for flash reduction in low-light conditions?
A: It excels at suppressing first-round pop (0.48 mcd*s) and subsequent flashes (0.05 mcd*s), making it highly effective for tactical use where concealment is critical.
Elevate your shooting experience today—secure the Knights Armament 5.56 CRS-3 Suppressor and unlock the full potential of your 5.56 rifle with unmatched suppression and tactical precision.
| 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‑influenced vented chamber design |
| Body Material | Inconel |
| User-Serviceable | No |
| Finish | Black Oxide |
| MPN | 122776-BLK |
| UPC | 819064019398 |
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.
| Name | City | State | ZIP | Phone | |
|---|---|---|---|---|---|
|
Loading FFL contacts, please wait...
|



