I was out shooting the Impact today and I'm not a fan of the factory grip. I'll be looking at Houge, Magpul and Ergo Grip. Any other suggestions?
I have couple grips but like the Penguin grip the most, I like it very much beside it is short a bit and my pinkie finger natural position is right on the edge so I hanging below for best comfort, I would extend it for 10-12 mm next time.