I recently bought a my first AR (a Bushmaster flat top carbine). Please forgive the naivity of my question but I am really, really green when it comes to rifles in general. I'm trying to sight the carry handle iron sights on this puppy in. I'm following the instructions in the manual which recommends a 25metre sight in but says that 25 yards is okay but it should hit about 3/8" low. Okay....I'm 'there' at 25 yards but when I shoot 50 yards I'm about 4" high and at 100 yards I'm not even hitting paper so I'm assuming that it's going over the target. What am I missing here?






















































