Quoted from pindude80:
thanks for posting. do you have a picture of the actuating arm, and anything else that might go with it, that mine is missing? The manual lists an actuating arm guide with a part #, but I can't pull anything up under that part #. I'm not sure what it is, mine might have it.
You need 01-8647-R
Marco has it: https://www.marcospecialties.com/pinball-parts/01-8647-R
I just replaced mine on my new-to-me Fish Tales as it was snapped off when I purchased it. I had to bend the arm a little so that it would hit the drop target and not the metal bracket (I assume this may be why it broke?)
After replacing it my target still wouldn't drop, so I jammed a screwdriver between the coils of the return spring and stretched it a little. Now it works perfect! I'm not sure that spring is even necessary, and it definitely doesn't need to be half as strong as it is.