oh yeah, one thing you might like Gunny is to spray the grip and pump with some truck bedliner stuff; you can buy the DIY stuff in aeresol cans for about $10-15. I did this to mine and it looks great (hardly tell) but adds a lot of grip for ya.
This is my tac-light also, I clamped it to the tube and put a remote cord on it, glued velcro to the pump to mount the switch, I love this setup better than anything else I've tried; the surefire builit in ones are too pricey for me.
I've not had good luck with the elastic ones, they stretch out, and won't hold the shells. I perfer the shotgun bandoleer belt. This is just an example of the leather belts that are out there. $75 Grab the shotgun, and the belt. Put the belt on when you have the time.