Wondering if airgun retailers do trade in / credit

I was thinking the same thing 3 weeks ago..I was going to sell one of my HM1000X"s. I'm generally not into the idea of the classifieds. Don't get me wrong we this site has a great classifieds section and I browse daily just really not for me so any way I talked to UTAH AIR I was told take everything off the rifle your not selling scope rings stuff like that then take good pictures and send in to them and they will give you a offer...I decided not to go this route so the next steps you will need to ask them. 4S"s HYNZIE