Adjustable, Featherweight-style, single-stage, replacement triggers for popular bolt action rifles deliver clean, crisp trigger pulls that help improve accuracy. Precision machined and hardened internal parts for maximum reliability. Adjustable for weight of pull (1-1/2-4 lb.), creep and overtravel. Lock nuts hold settings. Ruger 77 fits models with tang safety, connects to Ruger safety button. Right hand only, will not fit current production Mk II. Mfg: Timney