SIDEWINDER PISTON 45ACP 16X1LH Manufacturer Model Number: YHM-3225-ML Manufacturer: Yankee Hill Machine Company Model: Adapter Caliber: 45 ACP Type: Accessory-Silencer Accessories Item Type: Accessory Shipping Weight: 0.1 Feature: 45 ACP Piston For Sidewinder Optic Adjustable Objective: false Optic Reticle Illuminated: false