F2™ Nozzles MODEL:AA-12 All UGS stocks for HK417

All UGS stocks for HK417 models use the "R01" rails

• Structured

Red: Selector

The 2-pin headers are labeled CON1 through CON4

The optional Gold valve expands the capabilities of the system even further by making it more flexible and adaptable when tuning for different rifle configurations

F2™ Nozzles MODEL:AA-12 All UGS stocks for HK417For cylinder conversion systems we assign numbers to the nozzles instead of using the rifle model. This is because the nozzle length can vary between the same gun model when made by different manufacturers. This can be from the manufacturer designing the rifle differently, or from the thickness of the gearbox shell affecting how far from the hop up chamber the cylinder sits. Therefore one nozzle length may work in different rifle models but not