If you remove the grip frame screws the main spring will shove the grip frame rearward until it is stoped by the trigger. It will be all bound up.
I believe it would be a mess. I thinkI would take a Dremel cutoff wheel and cut the mainspring in half in the middle, wind the two halves together to take the tension off. Mainsprings are easy to come by, I have several and will give you one. Once it's apart , the problem should be apparent.