Metal nozzle is here:
http://www.wiitech.com.hk/eshop/prod...roducts_id=369
Its a solid gun as long as you regularly maintain it. I haven't had any issues other than a spring that I had to stretch out because its too strong. I believe theres a CQB bolt available that drops in with a moderate amount of disassembling. The actual takedown is more tedious than the KWA MP7 in comparison.