Sorry, the second link should have been this
http://www.customriflescopes.com/shop.h ... 5737046the
The scopeless mount fits onto the rail on top of the rifle and the addonight fits into the scopeless mount.
The addonight becomes your digital night vision scope
The addonight can generate a reticle which appears on the display. The position of the reticle can be adjusted so that it coincides with the point of impact with you bullets.
There are numbers associated with the position of the reticle on the screen, so making a note of the numbers at different zeroing distances will allow you to move the reticle to the correct zero for any given shooting distance.
The addonight has an built in IR illuminator that shows up the rats, so no external illuminator is needed
You can, if you wish, use the addonight fitted to the rear of a normal scope, but the scope needs to have certain features before you'll get a decent image from the addonight.
1. The scope must have some form of focus adjustment, either adjustable objective or side focus, and the focus needs to g down to less than 10m and preferably 5m for ratting
2. For short range ratting you'll want low magnification, not more than x2 or x3 because the addonight itself magnifies everything by at least x2
Frankly, you won't get a decent scope for less than £150 (even 2nd hand) whereas the Addonight scopeless mount only costs £35.
Cheers
Bruce