Those two "x"s are marking the edges to remove...You can make that shape the same way, because unless it is just the way that screenshot looks those slopes appear to be straight, so those edgeloops are not giving it any shape....the only ones you need are the top of the trigger, the middle, to make it arch in, and the bottom. If those are in fact giving it a curve, then I would removed them and ignore it anyway...the model will be too small ingame to see that small of a difference, so it is really a waste of work and polys. Also this is just a personal preference, but it would make your work a lot easier to critique if you used direct front and side shots, and then if you wanted to throw in an angled one to show depth then fine. But a bigger thing is that background...for the love of all that is decent, please I am begging you to use a solid background. Not only is it uncomfortable on the eyes, but since your using colored wireframes it makes them difficult to see on that background.