The AAC Piston enhances the adaptability of AAC Silencers by enabling easy interchangeability between different host firearms featuring varying barrel thread configurations. To switch the suppressor to accommodate a different barrel thread pitch, simply choose the appropriate piston and replace the existing one located at the rear of the suppressor. Crafted from heat-treated stainless steel, all AAC pistons feature a bead-blasted matte finish for enhanced durability. Each piston is meticulously engraved with details indicating the thread diameter, thread pitch and the direction of rotation required for installation, ensuring straightforward and precise compatibility adjustments.