I am looking a 2 different optics for my first AR. I bought a Daniel Defense V7 here and need a scope. There is a guy locally selling off some stuff and I was wondering if you guys could give me some advice on if his pricing is fair. First off is a Trijicon ACOG TA01. The tritium is still bright and it was manufactured in 2009. He wants $650 for it. Second is an EO Tech XPS2-0. He wants $400 for that. Magnification is not a big deal to me. At most i'll be taking it out to 200 yards but mostly at 100. Thanks for the helping the newbie.