So I own a daisy 131 air rifle and I want to put a scope on it but it has one of those old fashioned rails I don't know what it's called though I've been hearing dovetail rails Weaver rails and the more famously known picatinny rails sorry for the terrible spelling but I don't want to order the wrong scope and not have it fit and if someone has a good recommendation for a decent price for a scope please let me know