Background.....bought first AR a few years back, off the rack S&W M&P Sport II, and really enjoy it. Pretty much just a fun gun, targets, plinking and maybe the occasional pig or varmint should the opportunity present itself. Nothing other than that....no long range, no deer, etc. Pretty much 100 yards and in. Always just used the open sights and thinking of putting a red dot or some type of scope on it. While I know quite a bit about the traditional type scope for your standard bolt action deer rifle, I don't know much about the optics for these and what I'm using it for. Been seeing the above mentioned Sig on sale for $119 at Palmetto and thinking of grabbing one. Question is what does it add over what I'm doing now and does it suit and enhance what I'm using this gun for? Are there better options out there I'm missing? Seemed like a good price for what it is. I've never even shot an AR with any kind of scope or optics and just wanting to know if I'm on the right path. Thanks for any input.