I'm curious about a couple things. First, how ( and why) have you decided on two guns from nearly opposite ends of the price/quality spectrum ? I can understand wanting a Colt ( I've had a couple), but why ( and how) have you by-passed other top-quality AR's, like Noveske,Daniel Defense,Bravo Co.,Sabre Defense,LMT,Spikes, etc, yet settled on a S&W ? And, exactly how (and where) are a S&W and a Colt within a hundred bucks of each other? That sinply makes no sense at all. Last I checked, IIRC, a Colt is something like $1200+, and a Smith can be had for $600. Assuming this isn't a non-sense troll post from a thirteen year old, I would ask for more information. Is the Colt way under priced, or is the Smith way over priced ? If the Colt is underpriced, then you better jump quick, if the Smith is jacked up, then you'd be well served to look at something else, somehwere else, like a Spikes Tactical, or the Smith's over at CDNN ( assuming they're still there at that price).