ATTENTION - still in development! Feel free if you like to test and provide feedback for further improvement.

I'm working on building an Airsoft modular duel tree. Can be stacked up to 4 levels, I think. Tested just one so far. For the target plates, I recommend 8 Bottom layers, so it won't be penetrated. If they get destroyed, they can easily be replaced. 

1. First assemble the feet on the Centerbase. They can be secured with some glue.

2. Then put the tree base in the center slot. Should be a tight fit.

3. In the round hole, the pin must be placed.

4. Then take the flipper arm and put two target plates on it. The thick part is supposed to be on the top.

5. The put the flipper arm on the pin.

6. Finally, you put the tree part in the square hole.

If you want a second level, repeat step 3-6

Hope you have fun testing it and provide feedback for further improvement.