1/100 MG MK2 2.0 Part 2 - Arm Joint and Bazooka

I performed some modification to the arm joint to hopefully make it pose better. This is the original design before the change. The arm joint is designed to rotate upward but not downward. My idea is to add that capability. First, the obstruction (marked area) on the torso armor and torso frame must be removed. Then the obstruction inside the frame is removed. I use the other side in the first picture. Hope it is not too confusing. The obstruction on the arm joint is removed. Now the arm joint can rotate downwards. The arm joint can moved horizontally forward and backward. I want to make it move backward more. I need to remove these obstructions. The back of the joint also need to be grind down more. After all the changes, it turns out the improvement made is only very minor. Oh well... Now moving onto the bazooka The mark area are cut and grinded Now it is color-separated