I'm looking to put a arca rail and a bipod on a krg bravo chassis that I have set up for a rimfire and had a couple questions. I also looked at their spigot mount but believe it might be better to go with a rail due to setting up a tripod next. I see multiple arca rail options on krg's website and the one I believe I'll need is the regular arca rail and not the XL. I don't think I will need the heavy version either as this is on a 17. I will be going Atlas CAL for the bipod and I'm assuming the smaller height but there are three options there also. Looking for opinions on what works or a better mounting solution. I'm not going above atlas for the bipod, thanks.