From what I understand, this spring should suffice for what I am trying to do.
http://www.ventureairsoft.ca/item.ph...979ef2cd95ce1e
However other parts I'm looking for I have no clue if they will work or not. Such as standard XYT gearsets, bushing replacement, spring guide, air nozzle, etc. Essentially I'm looking to build a beefed TM FAMAS using substitutes. I've heard that some V2 pieces are compatible, but still, don't know which. I've heard of people upgrading a TM FAMAS, just have no clue where to start.