The Ismi 12.5 LB. C/S SPRING is a high-quality 1911 Government recoil spring designed to deliver consistent, reliable cycling for accurate, dependable service from your 1911 Government pistol. This 12.5-pound spring is engineered to optimize recoil impulse and slide velocity, helping maintain steady follow-up shots while preserving spa r of reliability across a range of loads. Ideal for handgun enthusiasts and professionals seeking to fine-tune their 1911 platform, the spring integrates seamlessly with Government-model frames, ensuring precise fit and function without requiring extensive modification. The 1911|Government compatibility means shooters can expect smooth operation, improved timing, and reduced wear on moves and sear surfaces when paired with appropriate components. Constructed to exacting standards, the spring promotes balanced trigger feel and consistent discharge cycles, supporting tight groups and repeatable performance in training, competition, or field use. Whether upgrading a worn recoil system or tailoring a carry-and-shoot setup, this component from Ismi delivers trusted reliability, enhanced control, and long-term durability for the handgun you depend on.