The Ruger 10-22 is a semi-automatic rifle famous for being cheap, reliable, accurate and for having a myriad of aftermarket modifications available. Furthermore, the .22 LR catridges it uses is easily obtainable, cheap and many rounds can be carried around. It is an immensely popular weapon, boasting some of the highest sales for .22 caliber weaponry. Because of the above qualities, it is very valuable, both as a training weapon and as a zombie killing tool. File:1022.jpg