This piston by Silencer Co. is made out of 17-4 stainless steel, and is used for .45 Auto caliber handguns. Made for the Osprey and the Octane, this piston features a .578x28 thread pattern.
Item Specifications:
Brand SilencerCo Category Bolts & Pistons Series Piston .578x28 Caliber 45 ACP Model Osprey/Octane Material Stainless Steel Finish Stainless Thread Pattern .578" x 28