Future Energy Hong Kong puts out more upgrade parts for the Vega Force Company MP5 Has Blowback Airsoft Submachine Gun. This time, these are the CNC'd steel hammer and the CNC'd seear. If you already have the VFC MP5 GBB then it might be the right time for you to look into these upgrade parts.

For VFC MP5 GBB Upgrade parts, CNC steel Hammer

For VFC MP5 GBB Upgrade parts, CNC steel Sear