[Apostle]

How do you remove the rear sight base?

It looks like an allen head, but there is a silver pin or something inside it and an allen wrench cannot fit.

Ranch 580-7X

 

[COBrien]

Strange... My 580 rear sight came off with an Allen wrench.

Is one of those "Security Torx" screws?

 

[Spots]

Mine was just an allen head. But after two broken allen wrenchs, and then stripping it with a socket style, I had to drill and remove with an easy out.
Sent from behind my anvil in ye olde smithy

 

[Apostle]

yeah, there was something in it im thinking, from PO. Used a dremel and made it into a flat head. unscrewed fairly easily after that