The Ru-R Trigger is a precision replacement trigger designed for Ruger bolt action rimfire rifles including the 77/.22 and 77/.17 models. Features an adjustable weight of pull range from 14 oz. to 2.5 lbs. for customized shooting performance.Replacement trigger for Ruger bolt action rimfire 77/.22 & 77/.17Also fits .44 & .22 Hornet modelsRight or left hand operationAdjustable weight of pull: 14 oz. to 2.5 lbs.Complete installation kit with instructions hardware pack & wrenchBlack finishEasy user installationPerfect for shooters looking to upgrade their Ruger rifle's trigger performance with precise pull weight adjustment and reliable operation for both rimfire and centerfire applications.