Nighthawk custom's FM series guide rod plugs and reverse plugs stand out as the pinnacle of 1911 components, meticulously crafted from 11L17 carbon steel billets. These parts are not just accessories - they are the embodiment of precision and durability, setting a new benchmark in the 1911 parts industry. Whether you're assembling your ideal 1911 or enhancing your existing pistol, the FM series parts promise unparalleled longevity and performance that Nighthawk custom is renowned for. Each component in the Fully Machined line is expertly CNC machined from solid steel billets, ensuring superior quality and reliability. Unlike other manufacturers, Nighthawk custom eschews cast, metal injection molding and polymer alternatives, committing only to the finest materials to produce the World's Finest 1911s. Trust in the excellence of Nighthawk custom fully-machined parts, all of which come with the assurance of a lifetime warranty, underscoring our dedication to quality and customer satisfaction. Government size 20 lpi checkered front-end Compatible with a standard barrel bushing