The Wolff Gunsprings 1664 Rebound Spring Kit delivers a precise reduced power rebound spring designed for Smith & Wesson Universal Handguns, providing a smoother cycling feel and reliable performance across a range of action setups. This S&W-reduced-power rebound spring is crafted to optimize trigger reset and enhance handgun reliability in scenarios where a lighter spring tension can improve cycling consistency without sacrificing safety margins. Ideal for competition, training, or routine maintenance, the kit integrates seamlessly with universal handguns and aligns with Wolffs reputation for durable, dependable components. By selecting the appropriate reduced power option, shooters can fine-tune felt recoil, reduce slide velocity, and promote consistent follow-up shots, making it a practical upgrade for those seeking smooth operation and enhanced control. The kit supports a straightforward installation within compatible Smith & Wesson platforms, enabling confident routine maintenance and performance tuning for a wide range of shooters who value precision and reliability in their handgun action parts.