The Decimator-22 is a hybrid amalgamation of America’s two favorite rifles. the AR-15 and the Ruger 10/22. Using the 10/22 upper and an AR lower you get the best of both worlds for 22 plinking. This design uses the primarily 10/22 parts, with options for more DIY, including barrel sleeves for liners, printed ejector , and stocks. There are various ways you can put the Decimator together which will you choose?