The Ed Brown 1911 Commander 45 ACP 18# Flat Wire Recoil Spring is a high-performance component engineered for your 1911 Commander pistol. Designed for optimal reliability and smooth operation this 18-pound recoil spring utilizes flat wire technology to deliver consistent tension and enhanced durability. Ideal for those seeking improved cycling and reduced wear on their firearm this spring is a must-have for serious shooters looking to maintain peak performance in their 45 ACP Commander model. Upgrade your 1911 with this precision-crafted recoil spring and experience superior function and longevity.