Blued 20" Combo Pack Smooth .920 with Stock Butler Creek offers many different options for you to convert your Ruger 10/22 rifle into a "Tack Drivin' Machine" . . . right at home. Choose between various target barrels and a matching target stock to meet your needs for competitive matches, target shooting, or varmint hunting. Please refer to the barrel specifications to assist you in choosing the most appropriate combo for your individual shooting pleasure. Manufactures Website Address www.butler-creek.com Warranty Information Limited lifetime warranty.