Application - Allows the STS, STS2, or RTS2 sight to to be installed on Ruger Mk II, III, IV, and 22/45 pistols. This adapter plate attaches to the dovetail insert provided, which replaces the stock rear iron sight. Includes mounting screws.
The RTS2R is equipped with a removable Picatinny / Weaver Rail Mount for use in direct mounting applications, and provides a 10 position push button manually operated intensity switch. Available in a 3 moa, 6 moa, or 8 moa dot size