Home HPA Engines, FCU's & Trigger Boards Gorilla Fusion Engine Trigger Board View basket “Gorilla FCU Wiring Harness – Short” has been added to your basket. Gorilla Fusion Engine Trigger Board£34.99 4 in stock Gorilla Fusion Engine Trigger Board quantity Add to basket Categories: Engines, FCU's & Trigger Boards, HPA Description Trigger Board made for Fusion Engine to have a faster trigger response. Related products Gorilla MMTW KITEngines, FCU's & Trigger Boards, HPA £179.00 Add to basket Kross Airsoft Design Hi-Capa To M4 HPA Adapter – Pre BuiltHPA, Taps Valves + Adapters £130.00 Add to basket Gorilla Mini FCUEngines, FCU's & Trigger Boards, HPA £129.00 Add to basket EPES Spare HPA tank gaskets x 3HPA, Tanks £12.00 Add to basket