Nice man, I picked one up a few weeks ago and I'm still waiting to hit the range. Hope you have plenty of .22lr if not check out gunbot.com and put an alarm for .22lr and be fast! I put on a fore grip, seemed to be calling for it. You gonna scope it?
S&W web site had mags for sale about 2 weeks ago. Got 4.
Put a SlideFire on mine and it rips off 25 rounds and is very easy to control. The funnest rifle on the rack. For about the same money another supper fun gun is a Sub2000 with a 31 9mm Glock mag. Enjoy.