Hybrid 45 grips will work. I used them on my G3. You just have to stretch them good to get it on. I would screw the bottom of one side of the grip first, then stretch the grip over the frame. Screw in the other side of the bottom grip. Once you have screwed down both bottom partss of the grip, the tops are much easier to put on. Its a nice snug tight fit. Over time, its gets easier to put on.