F2™ Offset Nozzles MODEL:#O-5 (CYMA M14) line and the Fitting Assembly

line and the Fitting Assembly Service to your cart and they will be assembled prior to shipping

Compatible with any PolarStar system that uses a REV2 or REV3 FCU

which is not included with this kit

A&K/JG SR-25 (V2

The UGS™ for the HK417 follows the same internal design as the standard UGS™ for M4/M16 series rifles but features a wider regulator body to interface with the larger diameter of the HK417 and G28 receiver extension

F2™ Offset Nozzles MODEL:#O-5 (CYMA M14) line and the Fitting AssemblyAs of July of 2016 we are starting to assign numbers to our 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