I’ve just had an email from Prometheus at SigmaAirsoft (well it was on the 22nd, so a bit back. but I’m behind in my emails), who are opening a new website with a custom shop taking on repairs and upgrades. Apparently the full website will be up in a few days or weeks, but as it’s still not up yet that I can see I’m guessing that the latter is more likely:
Sigma Airsoft Forums are now up and running to answer questions about Sigma. The official website will be up in a matter of weeks, perhaps days.
Sigma is a custom shop and repair shop that services AEG’s and Gas guns. We will repair gearboxes, replace motors, customize gearboxes, upgrade spring assemblies, and pretty much anything else that you can throw at us. We will even install conversion kits.
Please visit our forums if you have any questions.
Prometheus (webmaster for SigmaAirsoft)