These suppressors are specifically engineered to release the majority of the pressure contained in the device and bore prior to the operating system beginning extraction, which significantly reduces the negative effects of suppressor integration, and reduces felt recoil compared to a traditional suppressor with the same level of sound reduction.
Muzzle flash, and specifically first-round flash, has also been directly addressed and minimized with the PRT design. The Quick Disconnect (QDC) mounting method ensures reduced carbon-lock, as well as minimal but repeatable point of impact shift when transitioning between suppressed and unsuppressed configurations.
Model: 556QDC
Caliber: 5.56x45mm NATO | 223 Remington
Finish: Black
Action: Silencer
Addition to Bare Muzzle: 5.67″ (14.41cm)
Addition to QDC 3-prong FH: 4.15″ (10.55cm)
Overall Length: 6.25″ (15.88cm)
Weight: 19.2oz (545g)
Sound Reduction: 24dB
FFL Transfer & Firearms Laws for Knights Armament QDC/CRS-PRT 5.56x45mm Suppressor Kit, Black, 6.25" Length
All firearms, including the Knights Armament QDC/CRS-PRT 5.56x45mm Suppressor Kit, Black, 6.25" Length, must be shipped to a licensed Federal Firearms License (FFL) dealer. You will be required to complete a background check and any necessary paperwork before taking possession.
How It Works
- Place your order online.
- Provide your preferred FFL dealer information.
- We ship the firearm directly to your FFL.
- You complete the background check and pickup at the FFL.
Legal Compliance
We comply with all federal and state firearm laws. It is your responsibility to ensure the Knights Armament QDC/CRS-PRT 5.56x45mm Suppressor Kit, Black, 6.25" Length is legal in your state. Some states may have restrictions on certain firearm models or features.
Helpful Resources
Need assistance? Contact our Miami store for help with FFL transfers and firearm compliance.
Frequently Asked Questions About This Product
Why buy Knights Armament QDC/CRS-PRT 5.56x45mm Suppressor Kit, Black, 6.25" Length from Miami Shooters Supply?
We’re a trusted firearms dealer offering fast shipping, competitive pricing, and 100% compliance with U.S. federal firearm laws. All orders ship from our licensed facility with full tracking and expert customer service.
Where can I buy Knights Armament QDC/CRS-PRT 5.56x45mm Suppressor Kit, Black, 6.25" Length?
You can purchase this item directly on our website and have it shipped to your local FFL dealer. You can also visit us in-store in Miami, Florida.
Is Knights Armament QDC/CRS-PRT 5.56x45mm Suppressor Kit, Black, 6.25" Length available now?
Availability is shown live on this page. If the “Add to Cart” button is visible, this item is currently in stock and ready to ship.
What category does this product belong to?
This product is listed under: 5.56 NATO, NFA / Class 3, Suppressors.
What tags or features does this product have?
Key features and tags for this product include: Class 3, Knights Armament.
Is this product legal in my state?
It is your responsibility to ensure this item is legal in your state or locality. We ship only to valid FFL dealers in compliance with U.S. laws. Always check your local regulations.
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FFL Transfer & Firearms Laws
All firearms, including the Knights Armament QDC/CRS-PRT 5.56x45mm Suppressor Kit, Black, 6.25" Length, must be shipped to a licensed Federal Firearms License (FFL) dealer. A background check and any required local paperwork must be completed before you can take possession.
How It Works
- Place your order online.
- Send us your preferred local FFL dealer info.
- We ship the firearm to your FFL after verification.
- Complete background check and pick up from your dealer.
Legal Compliance
We comply with all U.S. firearm laws. It is your responsibility to ensure the Knights Armament QDC/CRS-PRT 5.56x45mm Suppressor Kit, Black, 6.25" Length is legal in your state. Some states (e.g. CA, NY, NJ) have restrictions on magazine size or certain features.
Helpful Links
Need help? Contact our team — we’ll guide you through selecting a compliant firearm and the FFL transfer process.
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