This is a product one of my customer came up with, a strap to attach to the front if your Ruger Charger Pistol ( http://www.ruger-firearms.com/Charger/index.html ). It attached to the bipod swivel stud, you pull back and down to hold the pistol steady. It works! I tried it on my normal squirrel rifle and it works for it as well. Neat idea. $25-$35 shipped depending on leather used. I have a couple on hand in brown bridle and can make one in black or natural if needed.
If you need a normal 2 point sling, check out my slings at http://www.shottist.com