In trying to keep additions to the Jeep light weight, we went with the aluminum version of GenRights rear bumper. At 20 Lbs, it's one of, if not the lightest bumper available. Formed and welded of 3/16" plate, it's plenty stout too boot. The tow points are either water jet or plasma cut from 3/4" steel, and each are bolted to the frame in three places and also attach the bumper to the frame. Six additional bolts ensure this bumper is NOT coming off easily. The bumper was scuffed hard with a Scotch-Brite pad, cleaned and de-greased with alcohol, and coated with Duplicolor Bed Liner via rattle can. I've used it on sliders with good results.
Once all the holes needed for mounting were marked, center punched, and drilled with a step bit, I completely installed the bumper prior to removing it for paint. I found the supplied directions made it very difficult to install. The nut plates are under the tow points, and were difficult to line up.
To facilitate installation, I attached the bumper with the two bottom bolts, then placed the frame rail nut plates into position thru the holes for the tow points. Once the bolts for those were started, I slid the tow points thru the holes and bolted them up thru the holes drilled into the frame. This was much easier than trying to put the nut plates and tow points in before sliding the bumper into position.