Need advice on a laser sight in daytime

Hi all,

I'd like to mount a laser sight onto my 10/22. It doesn't really resemble a 10/22 anymore (replaced folding stock, quadrail, Magpul sights, etc.).

Anyway, I need to be able to see the laser at 50 yards IN DAYLIGHT. "This is stupid," you say? Yep - but this is r/guns, so we don't have to explain why we want cool stuff on guns.

What should I buy? Does anyone have experience with good lasers that hold their zero and show up during daylight?

(edit: I have picatinny rails)