Thanks for the great reply. I can see a difference from the pictures, in my new Omega Dream season. The pins that hold the trigger group to the barrel, do not have set screws to hold them in. They are splined at one end, and you really have to hammer hard to gey them out. I do not think that with this design, the trigger group is to be seperated from the barrel by the average person. I am going to call T/C Monday and complain about this, and see if it can be retro-fitted with the more user friendly set screw pin system, that other Omega's have. When I clean my MZ's I like to remove everything, and immerse in a bucket of water, and pump flush the barrel. In my opinion this set-up they have now is a step backwards.