OK, this is really quite promising, but I have a pretty big issue here with the design. This design implies that two hands are necessary to aim and fire the weapon, at least in many important engagement scenarios. For this reason, the placement of controls on top of the weapon, at least exclusively, seems like a bad idea. These controls need to be placed were the hands are going to be or were they could well have to be, or at least there need to be redundant switches there at those locations. See for example, thumb activated fire-selector switches. A soldier should be able to switch from stun to dematerialize etc without moving his or her hands from the grips. Similarly, every site function should be available with hands on grips.