A buddy brought me his apx carry because it doesn’t even fire. He said there might have been some trigger parts swapped out on it but can’t get ahold of the guy who did it. What’s happening is if you lower the slide slowly it won’t go into battery. If you drop it, it will usually close all the way. When you pull the trigger the slide gets cocked back maybe 3/16-1/4” and then falls. I took the whole thing apart and inspected everything and it all looks good. I called beretta and they weren’t much help and just said send it back. My buddy doesn’t know what parts were replaced. Other than buying all replacement parts and swapping them out one by one, I don’t know what is causing this. Any body know what out or spec part would cause this? Thanks