WTF are you talking about?
Those lines are for left/right sight adjustment.
Should be able to hit someone at 300-500 yards out with iron sights
>flip aperture, close target ghost ring vs far target peep
Sauce? cause that is not what the US Army taught me.
>>10552591 (me)
NVM found the sauce. You were correct.
Looks like I was taught wrong. hmmmm.
>https://www.armystudyguide.com/content/army_board_study_guide_topics/m16a2/zero-and-m16a2-rifle.shtml