Yankee Hill Machine Nielsen Piston for Yankee Hill Nielsen Booster Assembly .578"-28 Thread

This Yankee Hill Machine Nielsen Piston is designed for the Yankee Hill Nielsen Booster Assembly. The Yankee Hill Machine Nielsen Booster Assembly replaces the direct thread adapter on a YHM Sound suppressor or any other suppressor on the market which utilizes the 1-3/8"-24. They are designed to be used with handguns and barrels which require a Nielsen Piston spring. YHM's Nielsen Pistons are compatible with YHM's booster housing YHM-2055 as well as many popular pistol suppressors. They are cons