SilencerCo Specwar K 5.56

SilencerCo Specwar K 5.56 Fast Attach Suppressor

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SilencerCo released a shorter, lighter version of the Specwar product line - the Specwar K 556. This suppressor was designed to meet a military requirement that emphasized shortest overall length more than sound reduction. SilencerCo is now opening this model up for commercial sale.

"Our goal with the K version of the Specwar was to create the shortest and lightest hearing-safe 5.56mm silencer available," noted Josh Waldron, CEO of SilencerCo. "This K version of the Specwar will still carry our lifetime warranty and can be used for full auto fire on barrel lengths down to 7 inches."

SilencerCo tested the K versions on 11 inch, 14.5 inch and 16 inch 5.56mm barrels with 62 grain M855 ball ammunition with a range of results from 137 to 140 dB.


  • Worry-free, positive locking ASR quick detach mount ensures Specwar will not loosen while firing
  • TrueBore manufacturing ensures little to no point of impact shift
  • Low back pressure
  • Lifetime Warranty


  • Caliber: 5.56mm (.223)
  • Muzzle Average Sound dB: 133.6 dB (5.56)
  • Length: 6.2"
  • Diameter: 1.5”
  • Weight: 13.7 oz 
  • Materials: 17-4 Stainless Steel, 316L Stainless Steel, Stainless Steel, Stellite
  • Full Auto Rated: Yes
  • Attachment: Trifecta flash hider mount, 1/2x28
  • Optional mounts: Additional brakes, flash suppressors, and thread sizes available at additional cost.
FFL Restrictions

FFL/SOT Requirements This item can only be shipped to a Licensed Federal Firearms/Special Occupational Tax Dealer.  Please our firearms shipping policy

Export Restrictions

Government Export Restriction This item may be regulated for export by the U.S. Department of State or the US Department of Commerce. Please see our Export Policy.

ITAR Restrictions

ITAR Product By adding to cart, I understand, acknowledge, and agree to the Export Policy. I am a US Person, and I do not intend to export this product.  Please see our Export Policy.

Additional Info

Additional Info

Manufacturer SilencerCo
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