F2 Low Flow Poppet, Gold Shims & Spacers The spring keeps pressure against

The spring keeps pressure against the board when the gearbox is assembled to hold it in place

J3 = Nozzle Solenoid

The standard Black poppet valve for the Fusion Engine™ allows the maximum amount of air flow through the system and it is the nozzle which restricts the flow into the barrel which varies the velocity

If there is a particular AEG stock that you would like to use and it will not fit on a standard Milspec buffer tube

F2 Low Flow Poppet, Gold Shims & Spacers The spring keeps pressure againstThe F2 poppet valve is available in two levels, Red and Gold. The Red valve is the standard valve that comes in the F2 and provides the maximum amount of air flow through this system. This makes it well suited for builds operating at field velocity limits. 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. Replacing the Standard Red poppet