This is a really good point, I wish there was a way to make the main non-movable sights bigger or easier to see. For some reason using the targeting sights messes up my aim a lot, probably because it is moving constantly when your target is moving so if you focus only on matching up the moving sight to the moving target it gets hard to score a hit. Just judging using the main sights and the target and possibly having the targeting sights as secondary, less bright objects would probably help. Is there a way to customize the HUD? I liked that feature in Battlefield 2.