Slide rattle

[Big Bore]

Just noticed a few weeks ago that my G23 gen 3 has developed a rattle. It sounds like an old 1911 when you shake it. Is this something not to be concerned with? I looked over the innerds fairly well and could see nothing to be concerned with.

Thanks for any help.

[JR]

Most likely hear the striker moving back and forth. No worries, this is a good thing.