Yankee Hill Machine YHM-2060-M Nielsen Piston 9mm Luger M13.5x1LH - Stainless Steel

The Yankee Hill Machine YHM-2060-M Nielsen Piston is a 9mm Luger booster piston designed for pistol-caliber suppressors that accept the Nielsen-style piston system. Machined from heat-treated 17-4 stainless steel for maximum durability and corrosion resistance, this piston is built to handle the heat and pressure of suppressed pistol fire.