A spare side lever for JTS airguns is a replacement component that is designed to fit and function in place of the original side lever in the airgun. The side lever is used to cock the gun and prepare it for firing. It is typically made of high-quality materials and designed to provide the same level of performance as the original lever. The spare side lever can be useful for airgun enthusiasts who want to keep their JTS airguns in top condition or for those who need to replace a worn or damaged side lever.