Print-in-Place Rocket Launcher, upgraded firing pin assembly

So I tried printing Nakozen's rocket launcher(https://www.printables.com/model/432773-rocket-launcher-toy-print-in-place) in PLA+ 3 or 4 times and consistently had an issues with getting the push pin to smash the center firing pin off of the lip. I cut one in half with a knife and figured out that if I added some meat to the central firing pin, increased tolerances, and made the push pin quite a bit more square, it will fire more consistently.

Printed on an Ender Pro S1 with Duramic 3d PLA+. Works really well for my 6 year old son, and resets with ease. 

Remember to block seams from the v cut where the pin locks in!

After testing overnight it is almost 100% reliable to catch and fire.