
Silencerco
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SC-AC1346
817272015287
AC1346
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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