BUILD GUIDE:

DEMO:

(If you do like this please like and subscribe to help me out, just getting started with this YouTube stuff, so far it's cost me more than my 3D printers just in gear to get clear video)

Non-3D Printed Parts
4 - 19mm 1/8in rods for hammer/rocker/magazine/trigger
1 - M3 nut for grip
1 - M3X16 cap screw for grip
3 - M3X12mm cap screws for frame
3 - M3X4~6mm cap screws for handle
3 - Size 16 rubber band to tension hammer (goes around hammer and band catch, give it a few turns)
1 - Small loom size band to tension trigger

Updates:
V5(ongoing) - More realistic trigger design
V4 - Magazine improved strength (thx to soelvberg for feedback), added stand, lots of little tweaks. Magazine now needs gluing so you can change the colors, doesn't affect servicing.
V3 - Trigger and Magazine now only need one spacer (before they needed 2 but now one is already attached, the reason for this is to print without support)

Fully functional 6 shooter Rubber band gun. Hammer cocks and action works, hammer hits a block to release a band, just like the real thing! So close to scale you can fit real grips on it!

Comes with 3 interchangeable barrel sizes. Each barrel type comes with 2 options: Screw attachable orange plug (child proof), or slide on orange plug. These may or may not be required in your area or for kids safety. But I'm giving you as many options as possible :)

Full disassembly for service, just needs M3 screws, NO gluing required! ...ok, you have to glue the cylinders on but that's only so you can change their color.

You will need cheap 1/4 welding/soft steel/brass rod for the pins comes with pin sizer, just put the rod in the sizer and cut on the line for a perfect fit!