The Ed Brown COMPETITION MAINSPRING 5 PAK delivers precision performance for serious 1911 shooters, pairing top-tier craftsmanship with reliable action parts designed for competition-grade reliability. Crafted as a 1911 COMPETITION MAINSPRING, this five-pack provides consistent hammer force and smoother cycling across standard and commander-frame configurations, making it an ideal upgrade for competition pistols where trigger feel and snap reset matter most. Built to fit 1911 and Commander models, these mainsprings integrate seamlessly with existing internals to optimize lockback timing and recoil impulse, helping shooters achieve clean, repeatable follow-up shots under pressure. Ed Browns engineering focuses on durability and consistency, ensuring ample pressure for reliable ignition while preserving the smooth, predictable pull that competitive shooters rely on. Whether youre tuning a race-ready 1911 or dialing in a Commander-variant build, the COMPETITION MAINSPRING 5 PAK supports steady performance across multiple matches and training sessions. This set is a practical choice for gunsmiths and enthusiasts who demand repeatable reliability, crisp sensation, and enhanced control without sacrificing accuracy. Elevate your handgun action parts with Ed Brown and experience a refined cycling cadence that translates into confident, precise shooting at the line.