I'll agree with stefans not being good for indoor use. I was just screwing around with a 3 foot length of petg, and used it as a blow gun with a stefan. I blew the dart across my living room and it hit a window. The window is definetly cracked now, not broken, but cracked for sure. I won't use stefans indoors anymore.
I couldn't find any AT2ks at Target either. I'm actually on the verge of buying a twin-pack in the box off of ebay, if I can't find one in the target in my home town. (I'm a college student, and I live about 45 minutes from my hometown.) It's difficult to find anything in this town. Even toys r us only carries Fireflys and Mavs. No Airtechs or BBBs to be found.