I have recently received a crossbow from my grandfather, who bought it at a garage sale for 1$. I've been working on it for a few days and I've only reinforced the spring rests and couplered it with CPVC. I couplered it like in Pvt. McFlurry's mod in the directory. I'm using the stock plunger tube and it moves around a lot when I put in and take out the barrel. Is there a simple solution to secure the plunger tube inside the shell so that it doesn't move? I'd rather not glue it in, but if need be, I will.
I'm working on a BBB and I'm planning on doing Coop's reinforcement mod. I got the correct size washers, but I don't know what tool to use to cleanly cut the washers so that I can get the disc back on to the plunger rod with the washers on. Anyone have any suggestions on what tool to use for this mod?