NPAS?

So I've been tempted by the SAI GRY, but I hear it shoots pretty hot. I know about NPAS, but it doesn't seem like any will fit. I believe the OEM is G&P(not sure), so will the G&P compatible NPAS fit, or will perhaps a different one? Does anyone know? Changing bb weight is pointless, as guns are chronographed with .20 anyway. No one makes a CQB valve for the GRY, so that's out. And ideas?