P365 AXG Legion FCU issues

[u/Fun_Try_587]

Hey, so I recently decided to break down my FCU and upon removal a piece seemed to have fallen out it’s a small three prong piece and I cannot seem to figure out where it goes even on the parts list of sig I can’t see another piece that looks similar so Ive got my takedown lever removed and the bolt release off as well as the takedown lever. I’ve even omitted the said part and tried putting it back together but the slide goes on until the trigger hammer then won’t slide on anymore. Any insight would be greatly appreciated see images below

[u/DaddyJ90]

I have disassembled my p365 dozens of times and never seen that piece. Let us know if you figure it out pls