Personally i would`nt bother . You get what you pay for , especially with Night Vision , and by the look of that unit , it can`t be used as an add on . You must understand that if it could be used in conjunction with a rifle scope , this would be a great selling point and in sure it would be advertised as such . On the other side of the coin , alot of `spotting scopes ` and `NV Mono`s ` simple wont work as an add on because of the lens configuration . As a spotting scope they need a focusing objective lens , and this , combined with the set up of the lenses in your rifle scope , will not give