from RIA on my facebook they are introducing a new round the 22tcm9r for conversion kits to fit other brands of 9mm guns here is the post from Martin the CEO of RIA "Hi everybody. Just a FYI the new round is not called REV. It will be called the the 22 TCM9R the 9R standing for 9mm revolution. Why because I will make a conversion for every major 9mm gun out there in the next 5 years which I think will change the people's minds about fast bullets with no recoil. It revolutionary don't you guys think?"