Enhance your compact handgun's performance with the Wilson Combat bullet-proof compact spring kit, a top-tier upgrade designed for reliability and longevity. This comprehensive kit features a robust stainless steel full-length recoil guide rod paired with a high-performance chrome silicon 22lb flat wire spring. Engineered to outlast standard compact recoil springs, this kit ensures consistent, superior performance with every shot. The innovative flat wire spring design offers a longer free length and more coils, maintaining optimal tension far better than traditional round wire springs. This means enhanced durability and reliability, reducing the need for frequent replacements. The guide rod is expertly prepped to seamlessly fit compact barrel lugs and links, saving you valuable time and effort during installation. The bullet-proof compact spring kit is rigorously tested to meet the highest standards, ensuring it delivers exceptional performance without requiring any modifications to your firearm. Its 0.25 inches diameter rod is designed for quick and easy reassembly, allowing you to reconnect it in just minutes using only your hands. Whether you're at home or in the field, this kit provides a straightforward, effective solution to enhance your handgun's functionality and reliability. Upgrade with confidence and experience the difference in every trigger pull. Compatible with 4 inches compact or professional handguns Service life - 40,000 hours Enhances cycling performance and overall functionality Enhanced longevity of the recoil spring Rod diameter - 0.250 inches The guide rod head is designed with clearance to accommodate compact barrel lugs and the link