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Knights Armament QDSS-NT4 Suppressor KAC 5.56mm w/flash hider - Black and Taupe

$2,175.00
SKU:
KAC09606200
Availability:
when in stock, ships within 2 to 4 weeks of ordering, ATF approval required
Extremely Limited Production and Availabilty:
we expect an extended delay between shipments
Knights Armament KAC NT4 5.56 QDSS/NT4 Suppressor in black

Knights Armament KAC 5.56mm QDSS/NT4 Suppressor w/flash hider (M4QD)

Legacy NT4 Sound Suppressor for 5.56 platforms with A2-style compensators. Offered in Black and Taupe

Great for your Mk18 or M4A1 clone.  Known by military historians and clone enthusiasts as simply the NT4, this suppressor was originally fielded in the early 2000s as part of a SOCOM solicitation.

The SOCOM requirement was seven 30-round magazines (210 rounds) fired full-auto as fast as possible. The prototype model did not have the "corncob" girdle, for which the NT4 is so known for.  The prototype passed with 55 grain M193, but had testing failures when using the required M855 "ball" ammo.  The solution was, as the story goes, to weld a wire frame, or girdle around the can, to make sure it would not burst, or overheat.  The welded girdle was more for external structural support than heat dissipation.  The second model had the girdle added, and it passed with M855.

After being widely used in the field during the GWOT, there were very few suppressors made after 2021, and the market price has been driven up by product scarcity.  Subsequently, the US Marine Corp issued a new contract for the same suppressor to attach to their primary infantry rifle the HK 416, or the M27.

Details about the suppressor and its history are somewhat opaque, as not much is written, and Knights did not produce many for commercial consumption.  So, if we are wrong about some facts, send us a note, and we will correct what we have.  We are not the NT4 experts, but like you, we like it for what it is.

Charlie's is a corporate sponsor of Pew Science, and Jay did a technical sound signature test on the KAC NT4.

Highlights and Specifications

  • Stainless tube with Inconel baffles
  • uses NT4 gate latch
  • 22 oz weight
  • 6.6" length
  • 1.5" diameter
  • -28db
  • NSN: 1005-01-437-0324

Buying and shipping through Charlie’s is easy, but there is some information you need to know. This item must ship to FFL holder. No civilian exceptions.

       1)  Check your state laws to make sure the federally regulated item you want to purchase is legal in your state.

       2)  Find your FFL… Have your dealer send us a copy of their FFL and SOT to Charlie’s (Make them earn their fee!). Not every FFL is a SOT or Class 2 / Class 3 dealer.  

       3)  Be patient! You should hear from our compliance department within 3-4 business days. If not, feel free to reach out for a status update.

That’s it! We try to make this process as simple as possible for our customers. Please click the “Buying a Firearm” tab at the top of this page for more information.

charlie-s-ffl.png 

THIS IS A SERIALIZED ITEM.  It must ship to a Federal Firearms License holder.  No civilian exceptions.

Buying and shipping through Charlie’s is easy, but there is some information you need to know. Only a federally licensed firearms dealer may receive a firearm or federally regulated serialized item (like a receiver or suppressor). We cannot ship these items directly to you. Please follow these steps to process your transaction:

1)     Check your state laws to make sure the federally regulated item you want to purchase is legal in your state. Your FFL dealer should be able to give you all of the necessary information regarding your state specific laws. But, if we ship to your FFL, and there is a legal issue, we cannot accept a return. So please make sure that you know and follow your local and state laws.

 

2)     A quick google search will show you what Federal Firearms Licensed (FFL) dealers are in your area. When you are ready to purchase, contact the FFL dealer you would like to use and get their shipping address. During the check-out, put YOUR address in the “billing” section and the FFL DEALER’S address in the “shipping” section. If you don’t know your FFLs address, that’s okay. You can send the information later.

 

3)     After check out, make sure to contact your FFL dealer to ensure they will receive your shipment for you (most do this for a small fee, but you should always double check).

 

4)     Have your dealer send us a copy of their FFL to FFL@CharliesCustomClones.com. Charlie’s does not reach to your FFL (MAKE THEM EARN THEIR FEE!!!)

 

5)     Be patient! In order to ensure we remain compliant with all federal laws, our compliance department is kept separate from our sales and operations team. Please allow a few days for our compliance officer to verify all of your dealer’s documents and ensure all federal laws are being observed. You should hear from our compliance department within 3-4 business days. If not, feel free to reach out for a status update.

 

That’s it! We try to make this process as simple as possible for our customers, but if you are unfamiliar the process or have any other questions, please visit our How to Buy a Suppressor page for more details.