I bought a S&W M&P sport last week and have been just get to know it as this is my first AR rifle. Paid $595 at my local general store. Fired a few rounds thru it with the stard site and then waited for my RRA scope mount to come in. I have a older burris japan made 2-10 scope to put on it. Went to a buddy's to get the scope on target and shooting some of wally world AR223 55gr. ammo to see how it shot. I did not expect much with a light .223 the a .556 chamber but I am more than pleased. 100 yard groups started at 1 1/4" and shoot one group right at 3/4". Can't weight to get some 68gr loads to try. Trigger stinks to me, breaks at 6lbs and will upgrade that to a 2 1/2lb jard and a hogue free float tube but that will be it.