im going to paint it so dont tell me i need to. ( im sure yall will anyway tho)
it has a 4 inch chamber and a 3/4 inch barrell the diaphragm is made with a rubber end cap you get at home depot. i shoot mostly paintballs and 12 gram co2 cylinderes.
i have a little leak around the cleanout plug. but im working on trying to fix it. id post a pic of my diaphragm but i cant get the end cap off
also you can see thee setup i use for taking my gun to the beach and using paintball tanks. i use hpa so no chance of super cold air bursting my gun.



edit:::
new pics
ok i tried to fix the leak again and finally got the plug out. so heres some pics of the diaphragm and the inside of the gun..












