[v2kai]

i recently upgraded my MP7 with nine ball spring, ball bearing spring guide, nine ball metal bushings and 6.03 tight bore barrel and the front of my gearbox cracked and half has broken off completely. I'm wondering if anyone knows where i can buy another mechbox for the MP7 or if there is a reinforced aftermarket mechbox available yet, or if it is even likely that they will be produced?
thanks for any help