This is something that can be done yourself. However, it's not a easy task and isn't something that is easy to explain over the net.
You must remove the ejector sears for each barrel and remove the small springs. Then replace the pins. The kicker is that this changes the way the forearm is replaced onto the gun.
Have a gunsmith that is good with the Citori remove the ejector sears and show you the way the gun was altered and how to reassemble the forearm.
This process takes well less than 30 mins. and should not cost you much. I did both my 12 and 28 gauge Citori clay guns.
