SilencerCo Piston 1/2x36 for Osprey/Octane Suppressors - AC57

This is a piston assembly for SilencerCo Osprey and Octane suppressors with 1/2x36 thread pitch, 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 contains female threads for attachment to host firearm muzzles. Pistons are easily interchangeable to accommodate different host weapons and calibers, including compatibility with Colt, RRA, and Bushmaster platforms.