I will upload a picture when i go inside on my computer. But i just purchased this blaster and took the head off for curiosity purposes and was curious what piston i have because with how cheap blasters are my fear is somebody put one of thoes cheapo rebuild kits on it. Cylinder is OEM has the oem markings and a toomy b1 full system. So by that im guessing the previous owner was not a cheapo when it came to doing stuff right. Anyways, the head of the piston says EX for exhaust obviously, then it has stamped "66.95" then under that is a serial number stamped "FR9292P4"