After following a couple of threads and looking at a few of the .22 SBRs on here I've begrudgingly decided I would pursue it. I wanted to build it myself to also satisfy my curiousity of building an AR, however I was fortunate enough to see and hold a GSG MP5 SBR and I think I'm in love. I don't know much about the reliability of the GSG or how long the barrel is, if bulk will go supersonic and I halfway don't care but alas I don't want to waste money either. Which is a better platform? AR seems to have more options but in the end its still just an AR. Are GSG pistols reliable? The GSG would be $500 + stamp. I don't know what you guys got into your .22 ARs.