My 24H needs a new rear sight. The one that's been on it for the past 25+ years is broken. It is a pretty standard, single dovetail, 3/16" sight.
However, the gun barrel has a double dovetail, both dovetails 3/16".
The 2nd dovetail was hidden beneath the original sight (original to me).
Is a double dovetail common with these guns?
Is there a preference, single dovetail versus double, other than for originality?