Hello everyone, I am new to this form. Is there anyone here that can give me some insight on the Benelli M4 collapsible stock and its mid-length setting as far as being able to easily acquire the ghost ring sights, or not. I have not found much about this but what I have seen was there are postings elsewhere that suggests that the collapsible stock was meant only to be operated at full length for the ghost ring sights and when you do put it on the mid-length setting it raises the sight picture above the GR therefore, only making it good for an optic.