GeneticsDave said:
You're going to over pay for that S&W M&P AR15, you should really consider a Stag or Rock River instead. Stag is great and they have them all over the place, particularly at FBMG.
Every broken AR I have ever been around was a Colt with one exception, an FN (not Belgian) these of course where military guns. RR did some damage to its reputation when they bought a few minor parts that where not as advertised, not high grade steel but, pot metal.... Over all the make a quality product and its near the top of my list, stag is another great choice, some S&Ws made just before S&W went mostly in house are not so good, otherwise they are quality. Any time something is as popular and everyone jumps on the band wagon there lemons, there are quality guns and there is junk. So much of the AR market is fluff, take the gasbuster charging handle its the most robust precision charging handle around bar none, its a quality product. But, the gasbuster is around 90.00 and a normal charging handle is 10-20.00, this gasbuster was originally designed to keep excess gas from suppressed AR's from blowing into you eye, that's it. These days most suppressor shooters use silicone on a stock handle as it gives a truly custom fit and a better seal. Better than half of these gee-wiz goodies are crap you dont need, ho many times have you seen just a flashlight and a fore grip on a 300.00+ rail system? Flashlights do not need repeat zero's, you dont need a high dollar rail for that, the expensive rails where built for lasers and optics things that need to maintain a zero.
Think and shop before you buy otherwise there will be another cut rate super tacticool gun on KSL where the owner threw away a few hundred dollars (or more) because, what was great in his imagination it nowhere near what he thought it was in reality. You are better off buying ammo than gadgets.
And, for my next rant.........
5.45 is cheap but one of weak points of an AR is it's extractor. Time will tell if it's a problem with crappy steel cases in an AR, prove it to your self before you trust it, an extractor and a spring is cheep insurance.