This template is the first template I released after more than a month break. The part 2 template contains 4 pages of colored version patterns and 5 pages of blank patterns. When completed you will have both arms with the back laser weapon? Honestly, I haven't watch this Iron Man 3 movie. Since our second child was born, my son Kyan now 10 months, we never got a chance to watch movie in theater. Because we usually go out together, two kids, our maid, my wife and me. Okay back to the template, basically both arms, left and right have the same parts (mirrored) and have the same number, so I suggest to finish one side of arm at one time and then move to build another side. The joints design is similar to previous Iron man model, so for you who have build my previous Iron Man model, shouldn't have a problem. But for you who never build one, perhaps you should check my previous template if you have any problem on the joints.