The same as what? You list the Rush in your subject line. Are you asking if the Rush a-arms are the same as the IQ a-arms? The Pro RMK and IQ RMK arms are exchangeable but use slightly different bushings to adapt different bolts. The Rush/IQ might be the same in that regard.
There's not much talk about the Rush here at SnoWest as mostly mountain sleds are discussed but I'm sure there are some that have experience with them.