I have been thinking about Glock 9mm but don't not sure on the factory sights. What aftermarket sights are best? I know everyone has their personal preference but looking for a general opinion. The 40 I had shot good but always printed to the left about 3". I didn't shift the rear sight, I just tried changing my style. Is there a chance a 9mm may shoot differently? I'm kinda a noob to the Glock world. I was thinking about an SR9 as well but I am not a fan of the LCI and don't care about external safeties (my finger is all I really need) but I do like the sights on them. Gimme some help guys.