best laser/light combo for poly80 sub

Because it’s such a short rail on the 80% Glock 26 compatable frame, what are my best options for a laser/light combo?
It’s hard to judge from the photo’s and I don’t see any specs on rail length required for them.
The Viridian looks like it should work, but that’s also almost how much the gun cost! so if there’s other options that would work, what would they be?