is yours tapped for the side mount? My friend bought one I think from sun optics or something, and then went to install it and found that it was the earlier model which isn't tapped for mounts, $30 a hole for 4 hole's seemed a bit pricey to put a scope mount on a $150 rifle (his is a bit of a beater), I can see if he still has the mount and if he wants to sell it if you like, PM me if interested.