Gun constraints & minimalistic sights

http://forum.worldoftanks.ru/index.php?/topic/651705-089-minimalistic-sights-0891-%d1%81%d0%b5%d1%80%d0%b8%d1%8f-%d0%bd%d0%b0%d1%81%d1%82%d1%80%d0%b0%d0%b8%d0%b2%d0%b0%d0%b5%d0%bc%d1%8b%d1%85-%d0%bf%d1%80%d0%b8%d1%86%d0%b5%d0%bb%d0%be%d0%b2-%d1%83%d0%b3%d0%bd-updated-30102013/