Is there a standard front sight height/width that I should be looking at for my G34 Gen4? I currently have the Dawson fiber optic front, but happened to smack the sight so hard on something that I broke off fiber holder and would like to replace it with the same sight. The gun will be used for USPSA/Run N Gun events, if that makes a difference, and currently has an adjustable rear sight. Thank you for your help, sorry for the noob question.