Knights Armament 556 QDC

Notify me when this product is back in stock

Availability: Out of stock

Our Price: $1,432.00

Quick Overview


The Knights Armament 5.56 QDC (Quick Disconnect Coupling) suppressor provides both effective flash and sound suppression, with minimal backpressure.  The KAC QDC features a consistent and minimal point of impact shift, removing any need to re-zero the rifle between mounting and unmounting.  Inconel and stainless steel construction allows the Knights 5.56 QDC to be durable enough for full-auto fire and prolonged use on short barrel rifles.  

Knight's suppressors are available in black and flat dark earth (FDE) cerakote colors. 


Like it's NT4 and QDC CQB brothers, the 5.56 QDC from Knight's Armament has been proven to withstand the rigorous, real-world test by the United States military and law enforcement agencies across the country.  The 5.56 QDC is ideal when looking for maxim suppression and flash reduction when mounted to Knight's QDC muzzle devices.  



  • 6.5" long
  • 16.7 ounces
  • Full-auto rated
  • Quick Disconnect Coupling mounting system
  • Available in Black and Flat Dark Earth
Caliber .223, 5.56mm
Weight 18.0000
Length 6.69
Diameter 1.475
Decibel Reduction / Output 29dB
Full Auto Rated Yes
Mount No
Thread Pitch What thread pitch do I have? No
Finish Cerakote
Materials Stainless Steel / Inconel
Can Be Disassembled No
Manufacturer Knights Armament (KAC)
Warranty No
Model No
Manufacturer's Suggested Retail Price $1,432.00

The Knights Armament 7.62 QDC/CQB suppressor provides suppression in an ultra short package. The idea behind the QDC / CQB is to keep the overall length of your firearms at a bare minimum while providing effective flash and sound suppression. Consistent and minimal point of impact shift is obtained using KAC's advanced QDC (quick disconnect coupling) mounting system that is also used on their larger 7.62 QDC suppressors.

Knight's suppressors are available in black and flat dark earth (FDE) cerakote colors. A muzzle device is optional at the time of purchase and required for use.


Product specific FAQs have not been added for this product.