SilencerCo AC28 Osprey/Octane Piston 16M x 1LH 45 ACP M16x1 LH, Black Stainless Steel
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 16mm x 1 LH thread pattern.