This piston by Silencer Co. is made out of 17-4 stainless steel, and is used for .40 S&W caliber handguns. Made for the Osprey and the Octane, this piston features a 9/16"x24 thread pattern.
|Size||40 Smith & Wesson (S&W)|
|Thread Pattern||9/16x24 tpi|
Determined at checkout.