.5.56×45 caliber, 20″ stainless steel Krieger barrel, Jewell two stage custom trigger and Armalite 1″ scope mount & rings. Fulton Armory installed bolt. In unused condition with perfect bore, all of the finish remains with an extremely smooth two stage trigger pull. Many accessories accompany the rifle including take down tools, extra scope mount and rings. All of the custom upgrades and alterations were performed by Fulton Armory, Savage, Md.