SHS Trigger Contact Set — Version 2 Gearbox

Trigger contacts carry the full motor current every time you pull the trigger. Over enough pulls they pit, blacken and eventually stop making a clean connection.

The symptoms arrive gradually. A trigger that wants a firmer press, then an occasional dead pull, then a gun that fires when it feels like it. People chase batteries and motors for weeks before they look at a part costing a few pounds.

Burnt contacts also throw away energy as heat, which does the rest of the wiring no favours at all. Fresh ones restore the connection the whole build was designed around.

Specifications

Good to know before you buy

Fit an electronic trigger unit and the contacts stop carrying motor current, which largely removes the wear problem. On a mechanical build they stay a service item.

Frequently asked questions

How often do contacts need replacing?
There is no fixed interval. High rates of fire, heavy springs and large batteries all shorten the life, and a gun out every weekend gets through them faster than one that appears twice a year.

Can I clean them instead?
You can, and it sometimes buys a little time. Once the surfaces are pitted rather than merely dirty, cleaning stops helping.

Will this improve my trigger response?
It restores it rather than improving it. If the gun used to feel crisp and no longer does, worn contacts are a likely culprit.