Never done this before, so I guess I don't really know where to start. I ordered a Mossberg 500 slugster today with a scope base. I can't seem to find out what 'style' the base is though. Is 'weaver' the standard style? According to my other thread, and Goat's response, the scope I'm using will have a 1" body, so I've atleast got that part somewhat nailed down. Here's the link to it: http://www.opticsplanet.net/bushnell-banner-3-9x40-mossy-oak-camo-rifle-scopes-713944mo.html My next question is, how do I know what height rings to go with? Anyway you can tell by looking at the pic? Thanks for helping out the ring newb.