This Timney Rifle Trigger provides the shooter with time-proven Timney quality and the fabled "breaking a glass rod" crisp trigger pull. The model 631 (blue) and 635 (nickel plated) is designed to fit all Savage bolt-action center fire rifles manufactured since 1977 (excluding those rifles equipped with the AccuTriggerTM ). The trigger pull weight can be adjusted from 1 1/2 - 4 pounds. In addition it is fully adjustable for sear engagement (creep) and over-travel. EDM cut, CNC machined from solid steel. Case hardened to ensure a lifetime of trouble free operation.