Hey peeps I have a vsr gspec that currently has a m100 spring in I think, its fireing about 318fps on the chrono. I was thinking of putting a m120 spring in to boost it to 400fps I only have enough for the spring to start with, how long would it last untill I needed to upgrade the rest? Would other parts break? Sorry if it's a stupid question I have no idea on it lol. Hope to hear soon Cheers