The SR1911, along with all other Ruger semi-automatic handguns, is manufactured at the
company’s 240,000-square-foot manufacturing facility in Prescott, Arizona. To meet ATF
regulations, Ruger has to ensure that the finished products are all properly marked with the
firearm’s model, caliber, manufacturer, serial number, and other details. For years, these marks
have been made by roll-marking (a process in which identifying marks are machine-stamped into
the parts to be marked). (read more)