Rubber Band Gun

I designed this 9-piece 6-shooter rubberband pistol. I recommend printing the sides of the gun by themselves. I printed the pins, holder, wheel, and trigger at the same time in basic red PLA. This was printed on an Ender 3 Max Neo. If you look at the first photo, you can see I wrapped the center in a rubber band. It is not required, but it is recommended for extra stability. I made the gun big on purpose because I have big hands, but it is scalable if you have a smaller printer or smaller hands. This is one of my first designs, and I would appreciate it if you could tell me what I can improve, what I can do better, and any general thoughts. Thank you!

Pieces

1 Right side

1 Left side

1 trigger

1 wheel

1 holder

4 pins

As many rubber bands as you want.