Kythera SA Main Sear Switchboards Using a set of calipers

Using a set of calipers and following the diagram below

This trigger mount is compatible with all generations of the V2 Fusion Engine from the very original to current production

• Breathable cotton blend

the longer castle nut on the G28 interferes with the closing of the stock rail when the CO2 insert is being used instead of a 2

allowing the engine to mount directly to the hop-up itself

Kythera SA Main Sear Switchboards Using a set of calipersYou want to try doing a fancy trigger job but don't want to take a chance of messing up your only sear? Pick up a spare! Original main sear used with all Kythera SA models. 4140 steel, gas nitride case hardened.