If you are wanting to put a scope on an air rifle, you will need an air rifle scope that will withstand the rear-ward recoil from an air rifle. Most scopes will/do not withstand it for long. We have put scopes over $400 and had them crap out in under 100 shots due to this. I have a Leupold air gun scope on my R1 and use it for ADC work. I have used it for over 20yrs and it is still dead nuts on at 20yds.