Nerf foam dart gun v1

This is my first attempt on making a Nerf foam dart gun. "Version 1"
The idea is to create a Nerf gun the can be printed on almost all printers.
The reason for this is. I own a HobbyKing Turnigy Fabrikator Mini aka TinyBoy. with a print volume of only 80x80x80mm.
This makes it challenging when designing big parts that I would like to print.

DON'T PRINT
This gun will unfortunately not shoot the dart at a speed that would be fun.
The small parts to hold the 2 barrels together tend to break