Whether you are in a hunting situation with a gun or a crossbow or just shooting for fun, the Handi-Cuff can offer control for someone that has hand limitations. Its ability to handle any caliber from a BB gun through a 30-06, or a 12 gauge shooting turkey loads has been tested for more than 20 years by people who have hand dysfunction. The Handi-Cuff® is easily installed without permanently damaging or marring your firearm or crossbow. The product is made out of lightweight aluminum so it will not add weight.
More information: http://theksoutdoors.com/The_KS_Outdoors/Handi-Cuff.html