destructible pen spring powered nerf target

This is a pen spring powered target meant to disassemble/pop open when hit. I have printed it and you may want to snip the top of the pen spring before you put it in the hole underneath the target.
prime the target by pushing the upper bullseye into the base then pushing it in forwards until the bar on the bullseye interlocks with the rectangle cutout.
the pen spring is not strong enough to launch the bullseye but it should at least pop it up out of the locking lug.