A&K/JG SR-25 Installation Spacer Kit Wire Harnesses Vertical clamshell holes are pre-sized

Vertical clamshell holes are pre-sized after printing — no drilling needed for those locations

A hop up that can move is a hop up that cannot be consistent

This switchboard was designed specifically for use in VFC HK417 and G28 series gearboxes

and follows the same specifications as a Milspec buffer tube

A&K/JG SR-25 Installation Spacer Kit Wire Harnesses Vertical clamshell holes are pre-sizedThis spacer kit allows a V2 Fusion Engine to be used in the A&K and JG SR25 rifles. Since these models use an "V2 Long" gearbox, the standard V2 Fusion Engine will not be long enough to interface with the rifle's hop up chamber and stock bolt. The included Delrin spacer extends the front of the engine so that it will be the correct length to match up to the hop up chamber while the included Nut provides an anchoring point for the stock bolt. Spacer