I need some help identifying a scope and mount I picked up in a trade quite a while back.  The mount is made to fit in the slot of the carry handle on M16/AR15 rifles with a sincle post though the hole and a thumb screw on the bottom.
Length of scope is 7"
Length of mount is 4 3/8"
Single post from top of scope
Windage adjustment by turning front of scope tube (Click adjustable)
Elevation adjustment by turning rear of scope tube (click adjustable)
Left side of scope marked "3X25" over 5Deg(symbol).  A mark that appears to be three triangles and "No. 311"
Right side of mount is marked "Colt's 62215 over Hartford, Conn USA" A rampant colt followed by "Armalite" underlined.
Any help as to what I have and what it is worth would be appreciated.  I have pictures, but can't figure out how to post them here.