So I just got my new Dan Wesson Specialist. Love the gun. HATE the sights. I want a fiber optic front sight with a black rear notch. Would like to add an adjustable rear sight, (not sure if I can). I measured the front and rear sights. Having never done this, I just wanna make sure I did everything correctly... measured the front sight at .168” and the rear at .320”. Does this sound right? LOL. Never did this and don’t wanna screw it up. So if ordering Dawson precision sights I need .170” front and .325“ rear. Correct?