Nighthawk custom's FM series guide rod plugs and reverse plugs represent the pinnacle of 1911 components, crafted from 11L17 carbon steel billets. These parts are precision engineered and durable, setting a new standard in the 1911 parts industry. Ideal for assembling or enhancing a 1911 pistol, the FM series parts offer unmatched longevity and performance, hallmarks of Nighthawk custom. Each component in the Fully Machined line is CNC machined from solid steel billets, ensuring superior quality and reliability. Unlike other manufacturers, Nighthawk custom avoids cast, metal injection molding and polymer alternatives, using only the finest materials to produce the World's Finest 1911s. Nighthawk custom fully-machined parts come with a lifetime warranty, reflecting a commitment to quality and customer satisfaction. Commander length 20 lpi checkered front-end Compatible with a standard barrel bushing