I have a tec-22 I picked up about 10 years ago at a gun show for $125. This thing is a blast, and it hardly ever jams. (which goes against 99.99% of all intratec gun owners accounts ) I've pulled it out after letting it sit for a few years in the vault, and I'm curious to play with the pin on it. I've heard you can file the pin and get it to go 2 shot or full.. I've also read something about a "clip" Anyone here done this? Some guy is selling a video with the conversion steps... but it's $40. For the disclaimer- I'm C2 and able to file for C3 if it's modified to full auto.