Very quick review;
LC's Engeenering Outpost does AEG repairs, mosfets and custom machining work. You can check out his page here:
https://www.facebook.com/lcsengineeringoutpost
Jim made me an adapter and priming rod for a BFG, and a custom barrel extension. Great service, very competitive prices (the adapter was far cheaper then what airsoft stores sell them for) and good communication. Items arrived promptly after payment.
Not a lot else to say really - I wouldn't hesitate to use again, and would strongly recommend to others
10/10