First off, the craftsmanship is incredible. I love the idea of an extended release, but unfortunately it only works with probably the stock J frame grips. I tried 4 pairs of grips with speadloader cutouts and my thumb could not access the lever. If only it was slightly thinner. I know it’s a great addition for full size revolvers, but it’s currently a little oversized for concealed carry even with grips that would work with it. I truly hope they come out with slightly smaller version in the future.