sledgthunder cylinder bore-v2

this is a revision of the version 2 of my barrel allowing you to fire any shell from the spring thunder series including with the double elite Nerf shot and the 3 shot pleshette boomco darts

V2 is finally out I added a gasket o-ring for better seal

I like all things universal and I really like the spring thunder and since I'm working on the crazy mod for the Sledgefire that allows it to have a removable barrel by a pin I decided to make a couple custom barrels for it so this is my first a