It's a great rifle, I have about 1,000 rounds through mine (which isn't a lot compared to some who have 10,000+ thru theirs), and have only had a few failure to fires, which I attribute to the ammo as it would't fire even after being struck several times. I plan on getting a silencer to share between it and my ruger 22/45. One thing you should know is that the lower receiver cannot be used to build off of, it is formed really close to standard ar-15 lowers but is slightly different to prevent that. The S&W magazines are really good.
The only way you can get closer to the real AR function with a .22 is to build a .22lr AR. The others that are standalone .22's like the colt, h&k, mossberg, etc. underneath have very little similarities to an AR-15. But with that said, I have heard that the colt and H&K do run well. The Colt and H&K are I believe both imported by Umarex the paintball company that does the GSG-5 (MP-5 clone), and simply branded with Colt and H&K's name.
Last edited by FishinLuke; 11-26-2013 at 10:45 PM.