This Model was inspired by Ezras first lightsaber with a blade mode and a blaster mode, The model has been split into multiple parts to make 3D printing and painting easier.
Most of the parts can also be screwed together using M4/M5 screws along with this some parts including the magazine and the switch can use magnets to hold them into place (3mm x 1mm for toggle switch) (6mm x 3mm for magazine).
There are two images attached with one showing where the screws and magnets needed along with where they go and the other showing the rough dimensions of the model.