Originally Posted by
zaitcev
It's not entirely independent. You still use the front sight when drawing. This method is quick and eliminates any delay of searching for the dot. So, unlike a rifle or a competition pistol, the iron sights are still critically important for operation of a combat pistol with an optical sight. I do agree though that to ask for tritium shows that the shooter isn't utilizing the optic. And asking for a front fiber of the same color as the dot might be a little self-defeating in some lighting conditions.