I am finishing up my .30 impact 700mm its not a competition gun but its going to be my main pest and sometimes coyote gun that will be in a fixed position so I don't plan on walking around with it to much. I currently have it topped with a athlon argos btr gen 2 and would like the option for so night vision shooting with a budget of around $500. The first one that I like is the pard 007 since I can clamp it on without taking of my scope. Another I am looking at is the ATN lineup of scopes but I would need to take off my athlon when I want to use it for night vision a few questions are will I loose zero everytime I take it off and is the ATN a good enough optic to just replace my current optic with. Last I was looking at is the wraith and the above questions apply do I loose zero every time and I don't think this one is worthy of replacing my main optic. Any other options will be greatly appreciated and thank you for the advice.