PDiK Gen.3 V2Description Developed and manufactured by Mancraft, this drop in kit forms the basis for mounting HPA conversions for the most common AEG replicas fitted with the V2 gearbox. The conversion is CNC machined from high quality aluminum alloy and anodized to minimize scratches and external physical damage. It is pre installed in an adjusted, CNC machined V2 gearbox shell. This includes the AR 15, MP5, and HK416 series of rifles, carbines, and sub rifles.