The Bersa Thunder 9 17-round magazine is a factory original component designed for reliable performance in both personal defense and range applications. Built with a durable steel body, it features numbered witness holes for easy round count visibility and a high-tensile steel spring paired with a polymer follower for consistent, reliable feeding. A removable polymer floor plate includes a precision-molded finger rest that integrates smoothly with the pistol frame, enhancing control and ergonomics while minimizing snags during carry or draw. Designed for compatibility and durability, this magazine delivers dependable function shot after shot.