Earthrise Scorponok lower legs issue

So last week I managed to score both Fort Max and Scorponok (and a Reflector too) for a great price.. they are all complete, but when I was getting Scorp prepared for display, I noticed his lower legs (the green and purple part) are backwards.. as you can see in the picture, the purple bits are on the inside, not the outside. is it a fairly simple matter to swap these around? I can see there is a small screw, but I wanted to ask before I started taking things apart.. tha ks in advance!