Hey gurus. Please take pity on an ignorant man and offer advice. I'm looking at my first AR buy and am torn between a Rock River Arms CAR 15, and a Colt carbine. Both do NOT have a chrome bolt carrier group, but the Rock River might have the 2 stage trigger. They are both new, and priced at $879 for the RR, and $1,119 for the Colt. I am looking for quality, and rock solid reliability. If you have advice and/or suggestions, please contribute. I am looking in that price range. Thank you FTF family.