Firing issues and just learned something I didn’t know.

I have issue with the lack of firing and light strikes. Reach out to Bore Buddy and they recommended one of their parts over what I used. They did not tell why what I picked was wrong. After a quick search I see the BCG is held in place by the buffer retaining pin. I have no buffer so no pin is need, at least so I thought. It appears my plug is too shallow and they recommended theirs, which I do not care for the design and it is not cheap. Taking a tip for AR15 spring adjustment I came up with this solution. Thoughts?