Just about anything is possible. Practical and affordable are the big questions. You need to find a close match for the bottom metal if nobody is making an aftermarket unit for the Ruger 77. Even some of the Rem. drop in kits aren`t cheap, some times it`s cheaper to trade the rifle on one that has the features you want. I`m sure if there is a company making a conversion you`ll get a line on it here i don`t keep track of Ruger aftermarket stuff myself.