The Rotofury is an awesome blaster in form and function....except it shoots mega darts. Putting in these barrel converters has made this blaster awesome. Kids and adults we play with both love it. Scrap the mega dart and convert to elite darts. Be warned these are hard to get in. You don't "have" to take the blaster apart to insert these but I did so i didnt break internals cause I had to hammer some of these in. A tool is provided that supposedly helps you remove these once they are in...if properly seeted all the way flush in the barrel how they are supposed to be you are not going to be able to remove them. I would consider this a permanent mod.
