+1 on the sanding block. otherwise it will really bite ya. Also, customer service is a bit slow, but they took care of me when mine had an issue. (Recoil spring guide rod destroyed itself, bent the frame and locked the slide.) They replaced the weapon free of charge, told me to keep the old mags, and sent a new one to me. Sold it after since I didn't trust it anymore, but if I were to get another, I'd replace that guide rod with a stainless version.