Strike Industries is developing a rear sight rail for Glock pistols so you can add a red dot or other optic to your Austrianhandgun without having to do any machine work on your pistol’s slide.
Right now, Strike Industries has not published a lot of information on the rail, but it would appear to be a short Picatinny rail that mounts to the Glock by use of the normal rear sight dovetail. This should mean that a shooter could merely tap out the factory sight and install this rail. He or she could then drop the optic of choice onto the rail.