I have the same exact rifle, and put an EOTech 512 on it years ago. Looking to upgrade to the EOTech 552 with night vision. Its only a holo though, not a frickin 6x48 scope. That thing is a beast, and I have only heard good things about their scopes. I have friends that have Trijicon scopes, so Ill see if they have any info on that one. Only cons I have heard about ACOG is the price and not being optimal for close range.