I got meprolight fixed sights on my g-20. The 10mm barrel shoots about 2 inches left. THe 40sw barrel is even worse it shoot more like 3 or 4 inches left. This is at 25 ft. I had the site installed by glockmeister when i got the gun. I don't have a sight pusher. Is there any way I can drift the sight a little to get it shooting straight for me? To move my group to the right I need to drift the rear sight to the right? Now I wish I got the adjustable sights. I think they would have worked fine with my simply rugged holster.