I believe it's a v3 mech box. In the morning I'm going to re-open it and make sure the spring get's latched around and maybe find a step by step for the full trigger assembly and the selector switch inside the mechbox.
“the kingdom of God is within man”, not one man nor a group of men, but in all men! In you! You, the people, have the power, the power to create machines, the power to create happiness!