Order a 30mm mount from Primary Arms. With the front sight you'll want the high mount. I have the sight and mount from PA and they are really high quality and the fastest shipping and best customer service.
Go with the sport. It even gets good word on ar15.com. Unless you're planning on doing lots of classes and shooting 1000s of rounds it's a great gun. Well made, lifetime warranty from S&W, etc. You'll never notice the lack of dust cover and fwd assist.
It's strange. I put the CLP on and a little while later it's gone. Doesn't happen on my pistol. I'm thinking of trying some grease instead. Maybe something thicker than oil.
It seems that no matter how much CLP I put in the bolt and bcg it seems to "evaporate" and my bcg dries off. Is this normal? Should I use a different lube? Thanks
I paid 839 for my sport back in March. I figure I guess you could wait for prices to go down further, but these days they could just as easily go right back up fast.