Actually the RS 10.8v does fit into both models of the Type 97. You would place it in the B model just as you would the Type 97, except put the part that goes into the upper rail down into the front hand guard/grip. I have 10.8v batteries in both of my 97s. But Lipo may be the easy way to go, putting in the battery is def not the easiest thing to do. But i agree this thing is a CQB beast! Got rails?