PDI O & Y Rings Repair Kit for PDI APS2 Piston Head

PDI O & Y Rings Repair Kit for PDI APS2 Piston Head Original O-rings and Y-rings Replacement/ Spare Part for PDI APS2 Pistons Head Great for emergency/spare quick-fixes to get your gun working when you need it. O-rings and Y-rings for PDI APS2 Pistons Head As always, upgrading / repairing require necessary skill & technique, consult expertise if needed.