SilencerCo Osprey/Octane Piston 9/16x24, Stainless Steel - AC31

This is a replacement piston assembly for SilencerCo Osprey and Octane suppressors, compatible with 40 S&W caliber and firearms with 9/16x24 threaded barrels including Glock, Beretta, and XD models. Constructed from 17-4 stainless steel and heat-treated for durability, the piston is part of the Nielsen device that enables semi-automatic cycling and features female threads for direct muzzle attachment. The piston is easily interchangeable to accommodate different host weapons or subcaliber applications.