Rifle Scopes Laser range finder for a rifle

[andrews1958]

I saw these and was just wondering if they made a smaller laser range finder that can be attached by a rail next to your scope?

http://www.excaliburcrossbow.com/catalog/crossbow/range_finder_mount#1

This one is only for crossbows and rimfires

http://www.laserrangefinderreview.com/leupold/vendetta/

This one attaches to you bow