Your cart is empty
Mfg Item #: AC626
Pistons are built with 174 stainless steel, then heat-treated for maximum durability. The piston is part of the Nielson device that moves and allows semi-automatic cycling for unlocking pistol barrels. Throw a Fixed Barrel Spacer on for fixed barrel applications. SilencerCo pistons have female threading that attaches to threaded barrels.
XL pistons are for firearms where the silencer requires additional length between the threaded barrel and the silencer.
Compatible with