Alright, so I am in the middle of my TM VSR-10 project and I just got some new parts in today. I got my Bushnell Scope, Prothemus 6.03 tightbore and a nine ball hopup rubber.
So I dissassmbled the hopup unit to exchange the stock rubber for the nineball. Upon installing it onto the tightbore and setting it into half of the chamber, I realized that I couldn't fit on the other half, it seems that the inner lip on the rubber is quite high, thus preventing it from closing. You can see the end thats on the barrel is quite high in this photo:
Any suggestions to fix this will be appreciated, has anyone else encountered this?
