Actually, those were something that we tried for a better grip purchase and also for style. Once we tried and tested them, we realized that they would loosen up pretty quickly from the recoil due to both the frame and the grip panels being aluminum. While they felt and looked nice, even with adding Loctite to the grip screws couldn't keep them tight for more than two or three magazines, which is unacceptable for a defensive gun. We stopped offering them even though we had a few hundred sets made. Such a loss in capital, however, it was the right decision to stop selling them. They were nice for static display only. Although, I bet now with those rubber washers some folks have used on the grip screws, those aluminum grip sets may be viable now.