Experience the sensation and sounds of cocking the hammer and pulling the trigger with this simple fidget toy. It does not look like a gun. In fact, from one side the shape looks like a toy whale jumping out of water.

I have made it as simple a design as I can think of. There are only 6 parts and assembly takes under one minute. The open design makes the trigger mechanism visible.

Even though I designed this for the cocking and pulling actions, I have found myself fidgeting with it in the following additional ways, three of which do not make sounds.

1. Pull the hammer down slightly but not enough into the cocked position, let the thumb slip and the hammer snap back up. Repeat. This action makes a crisp clicking sound. The feel of the spring and the crisp sounds are very pleasant and satisfying, and somewhat addictive :). A variation of this is to not let the thumb slip but hold onto the hammer as it moves back to feel the spring. This variation makes some noise.
2. Without the hammer in the cocked position, pull the trigger slightly and let the index finger slip and the trigger snap back into its natural position. Repeat. This action makes a crisp clicking sound. A variation of this action is to not let the index finger slip but hold onto the trigger as it moves back to feel the spring. This variation makes almost no noise.
3. Alternate between 1 and 2 above.
4. Roll the thumb on top of the trigger anchor pin, or the top of the hammer anchor pin, or alternating between the two. This action doesn’t make any sounds. If the top of the pins are not smooth enough, lightly sand or use a heat gun to smooth them out.
5. Push the hammer spring into the space between the hammer and the trigger, then flip it back out. This action makes noise.
6. Disassemble and reassemble the toy. Disassembly needs no tool and is easy to do, so it’s tempting to take it apart and put it back together, just for fun.
7. This last one is a bit tricky but I have done it when sitting in a chair with armrests: hang this toy upside down with the thumb holding the top of the spring anchor pin and the index finger or middle finger pressing on the opposite side of the handle, then swing it gently. It’s tricky because the index or middle finger has no easy spot to hold on to and the toy wants to drop down as it swings. I have not done it enough to the point that I can do it without paying attention.

Easily print with PLA and PETG (the springs and the snap ring). No support, no brim. 100% 3D printed. Easy assembly (and disassembly). No tool is needed, no rubber bands, no screws, no glue.

There are two versions, one for right-handed people and the other for left-handed people. Print profiles are provided for each.

A fair warning though: The springs are 3D printed with plastic. So they will not last long but wear out and break after a certain amount of use. It comes with the territory of making something 100% 3D printed. Fortunately you have a 3D printer :). It’s recommended to print out some extra hammer springs for easy quick replacement. In any case, let me know what your experiences and thoughts are and I may consider modifying it next time to use steel springs.

Instructions are provided for assembly, disassembly and use. Photos are extensively used in the step-by-step instructions for easy following.

Choose your own favorite color combinations for different parts. However, at least one easily visible part should be printed using a bright color. If a wallet can be mistaken for a gun from a distance, this, too, can be.