COMPLETE Seal kit for Benjamin 310, 312, 317 air rifles made from 1965 to the end of their production. PLEASE SEE OUR MODEL IDENTIFICATION AND DATING PAGE, UNDER THE TECHNICAL TAB ON OUR WEBSITE FOR MORE INFORMATION. This kit includes BEN10010. BEN3434X, BEN3452, and 2 BEN68AT-032. You will need the factory tool to access the valve. You can rent one on our website, it is part number SHET4.