Need some insight on what to choose for new optics on my DPMS AP4 in .308 w/ titan comp. I had an Eotech 516 on it and it worked pretty good for keeping a 20rd mag in a 6" circle at 200 yards, but I want more. I took the 4.5-14x40 Nikon Buckmaster off my 30-06 to see if I liked having glass on...