 Prototypes for a GS Promaster and an ND Promaster were designed but not released.The GS Promaster was designed by ICD tech Greg Schutte.It has the ICD aftermarket cylinder assembly, BlueFork modified stock ICD LPR, HPR, new ICD clamping feedneck, stock grips, Humphrey high-flow solenoid (same solenoid used in the Freestyle pro) and full predator coding v. 5.0.