Switchboard Kit, VFC HK417/G28 Series Black Friday This is generally due to

This is generally due to heavy reinforcement in the cast gearbox shell around the spur gear which occupies the area needed for the air line

the semi-auto-only variant for use in AEG gearboxes

Red: Selector

the standard V2 Fusion Engine will not be long enough to interface with the rifle's hop-up chamber and stock bolt

The Type 2 is designed for use with traditional TM Spec M4 series AEG receives

Switchboard Kit, VFC HK417/G28 Series Black Friday This is generally due toThis switchboard was designed specifically for use in VFC HK417 and G28 series gearboxes. The top of the board is designed to lock into the spur gear pocket in the gearbox and is secured by the delrin pin which locks into the spur gear bushings. The spring keeps pressure against the board when the gearbox is assembled to hold it in place. Compatible with AEG gearbox conversion kits such as the F2, F1 and JACK. Includes Board, Post, Spring and 6"