SpudFiles

maybe we can help you finsh this, you said in another thread that you were having trouble with geting a sealing surface, so I presume you need some sort of simple retracting blow forward seal that wont come off when there are no cartridges, and leave you with enough power in the end,

we might be able to help you improvise a design, what sort of rods pipe and tube nails do you have that can form sleeves over one another? how much power do you have to spare? tell us the rest of the holdup, we want to see this finished

Thanks for the comments. Right now I'm working on an updated design to address some problems this one had. I'll be submitting it to the Nerf Gun Challenge so I can't share any details about it just yet. Thanks for offering to help though. I really wish I could post some things now...