I am gonna do the same thing as you it's also my first time so if i miss something feel free to comment so here the part i will be ordering
King arms v2 6mm gearbox shell
Modify Full Modular Tune-Up Kit - High Torque- M4A1/SR16
Sorbo Pad for V2/V3 Cylinder Head
Modify M4/M16 Selector Plate
Modify V2 Cut-Off Lever
Modify Gearbox Spring Set V2/V3
Guarder V2 Buttstock Switch Assembly
Modify M4/M16 Steel Trigger
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