I haven't tried it yet, but try ordering from this place, I think they're a branch of Xplorer Blaster Parts:
So I have a Long Shot with a Remedy Metals powertrain kit in it with a cut down [k26] and the stock spring. I have not been able to find a dart that the kit likes or flies straight (as possible). The kit doesn't like full length darts made from solid 1/2 inch foam (just doesn't make it out of the barrel). I have tried half length slugs with the ACE hardware foam, they fly fine, but I would like to use an 18 drum with the kit. The elites and streamlines just ain't accurate (no **** right?) even with clayed or hot glue tips. My buddy has some of the velocity tag darts and they work WONDERFUL, but they don't seem to be able to reply to any emails or facebook. Is there anybody out there that knows what else I can do or are there any other companies producing a dart that will work in a stock clip system? Anything will help, I just want to be able to use this kit to its full potential!