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SilencerCo Piston .578 x 28 XL AC1346


SilencerCo Piston .578 x 28 XL AC1346 AC1346
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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.


The SilencerCo .578x28 piston is constructed out of heat-treated stainless steel and can be easily changed to fit with different host weapons/calibers. As a component of the Nielsen device, these pistons enable consistent semi-automatic cycling and contain female threads to fit them onto different host weapons.

Disclaimer: All NFA rules apply


  • Fits ManufacturerSilencerCo
  • Item ConditionNew
  • Product TypeSuppressor Accessories
  • UPC817272015287
  • MPNAC1346

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