Going to try to make my Mossberg 500A work for a deer gun. My 500 had no mounting system for any type of scope. Did a little research and came across this- Weaver No-Gunsmith Converta Shotgun Mount - Mossberg 500 http://www.amazon.com/gp/product/B00162QKT6/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1 Price was right and it had excellent reviews. I got it yesterday and mounted it this morning. It is as easy as easy can be. I had it on in less than 10 minuets, and I am probably as far from a gunsmith as possibly can be. It comes with everything you need, except a flat head screwdriver to remove the screw inside the receiver. Here's a few crappy cell phone pics.