of friend of mine put one on his ar,2-7,with bdc and lighted cross hare,why he did it i dont know,why do you need bdc if you cant see 300yds with it.Not very clear even at 100yds,and he wonders why he cant shoot good groups.Save up a little more and get something a little better,you wont be sorry,i used to be cheap with scope,now ill never go back.I could have bought 3 bushnell 3-9-40 sharpshooer brand new,for 10.00ea,and turnned them down