The EPEK feedneck collar allows any Intimidator owner to take their 2k2 threaded feedneck and replace it with an EGO feedneck. This will work on any Protege, Empire 2, Infamous; along with most Alias and 2k2 based Intimidators. You simply remove the stock feedneck, screw on the collar, then clamp the EGO feedneck onto the gun. The collar is based on 06 and earlier EGO feednecks.