Some will drop in and work fine, some won't. I know my CMC was going to need to be modified to work correctly. The only one I KNOW will drop in and function perfectly and give you a high quality 2 stage is the Elftmann they sell on their website.
If you call Tippmann, they can tell you what will drop in and work, what will need modification and if you have a favorite trigger, Greg can probably get it to work.
(260) 245-6155
If you call Tippmann, they can tell you what will drop in and work, what will need modification and if you have a favorite trigger, Greg can probably get it to work.
(260) 245-6155