Just to be clear I was the one who sold the Sterling Full Metal Airsoft to Luuke and nowhere in my Junkyard listing did it say anything about being an MGC piece. My asking price was simply the cost of the airsoft and the conversion parts I acquired to convert it, plus PayPal fees and the added cost of Shipping. I was only interested in recouping my initial costs so that is what I charged, plus the mentioned fees and shipping.
Luuke, I feel bad that a less expensive offering is now available, as I honestly had no idea one was even in the works, but I hope that the accuracy of the parts I sold you will make you happy that you have a more screen accurate blaster. If you are so inclined, please post pictures of your conversion as I would love to see what you do with it!