Yeah looking at those very tempted. But If I can get it fixed and properly shimmed for a similar price and not have to wait until the end of September that would be sweet.
Iv got a gun tech who will service mine for 20 but i received it locked by a scamer who said it was perfect so it's fallen down the list a bit lol. Must be a common issue for them to play up.
You can order a brand new gearbox off amazon for 60 instead of your £40 just to look at your old one. Food for thought