The Wilson Combat #176 Spring Kit is specifically engineered for Ruger single action revolvers providing enhanced trigger feel and reliable performance.Wilson Combat #176 Ruger Single Action Spring KitDesigned specifically for Ruger single action firearmsProfessional-grade gunsmithing componentImproves trigger pull and action reliabilityUPC: 874218000363This precision spring kit is ideal for gunsmiths and firearm enthusiasts looking to optimize the performance of their Ruger single action revolvers with Wilson Combat's renowned quality and engineering.