Wilson Combat Shok-Buff Recoil System 1911 Commander 45 ACP

This high-performance recoil system is manufactured from the finest components to provide the absolute best in quality and reliability. It offers an instant accuracy tune-up. Contains six Shok-Buffs, a stainless steel One-Piece Guide Rod and Plug, an extra power firing pin spring, a 12 lb reduced power recoil spring and a 20 lb extra power recoil spring for custom tuning.