Yes the Barricade Buster is an old idea and it is still used today, it is basically somehting like a folding frisbee type thign being loaded with stephans, thrown, and when it transforms back, the stephans go in all different directions. I know you guys said to search so i just wanted to put a LITTLE explanation, sorry.
Let me just say that some of the older Tek's and such (in my experience) break easily, they are however somewhat reliable. I urge you not o dryfire if you mod these guns. I was armed with my friends Tek Six in a surprise Nerf Battle and for a gun as weird looking, bulky, whatever, like that, im not sure If Id take the time to buy one but definetly maybe one used or from a friend.