Thumb tank! overengineered fidget gun

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Introducing the thumb gun, a little toy I've been designing over the last few days. After many prototipes and mistakes, I have finally managed to reach a fully 3d printed, strong gadget that can hold up to 3 rounds, and fits on your hand!. 

 

HOW TO ASSEMBLE

 

To assemble the thumbgun, all you need to do is insert the springs on the rails. Please note that there is a small chamfer on the rails, so that the fit becomes tighter the deeper you slide the springs(so that they are nicely fit). I reccomend using a hammer or a vise to slide the springs to the bottom of the rails. After sliding the springs until they look like the pictures, assembly's over!

 

HOW TO USE

 

To use the thumbgun, just grab the gun like this:

Then, slide 1 to 3 bullets on the backhole of the contraption, like this:

And after that, just place the primer, like this:

After that, all you have to do is grab the gun with both your hands, and squeeze the primer as hard as you can, and the bullet will blast off!