Switchboard V2 Retro Arms The 5-pin is for the

The 5-pin is for the main wiring harness

The BBs come in both

This feature

Tapered profile PICATINNY rail ends for a more comfortable hold when used as a hand stop

Improved: Auto Locking Quick Release mount and a more compact QR Lever

Switchboard V2 Retro Arms The 5-pin is for theThis switchboard is designed to replace the original trolley type trigger switch in a traditional TM spec V2 gearbox. It is not compatible with variants of the V2 gearbox which use a snap action microswitch trigger such as in the Ares V2 gearboxes. Compatible with dual or single solenoid AEG gearbox conversion kits such as the F2, F1 and JACK. Not compatible with Fusion Engine. Header Identification: J1 = Main Harness, J2 = Poppet Solenoid, J3 =