Do It Yourself Trigger Upgrades For Ruger~ Bolt Guns
Easy-to-install, triggers are investment cast from A-2 tool steel, then heat-treated and drawn to Rc 50-55 for long-lasting reliability. Radius ground sear surfaces help eliminate creep and enhance overall smoothness. Adjusts for weight of pull and uses the factory safety with no alterations. RU-MK II™ fits all Ruger M77® MKII™ rifles with 3-position safety. RU-R replaces the non-adjustable trigger in 77/22® and 77/17® rimfire rifles. Will not fit V/T Models with 2 stage trigger.
Big Book Catalog, Issue:68, Page:172
Sinclair, Issue:4B, Page:255
SPECS: A-2 tool steel, matte blue finish. Rc 50-55. Fits right- or left-hand rifles. RU-MK II - 14 oz. (397g) - 2½ lb. (1.1kg). RU-R - 1½ - 3 lb (.7-1.4kg).