PDW-1

Just my two cents, and I know space on there is limited, but that's a terrible place for a laser. The charging handle is in the way of the visible beam.

And I wouldn't like to use that handle with something so close by. Definite knuckle buster. Heck, that rail alone would be act like a grater.

Sorry for all the neg, it's a coolio design... I just can't think of a better place to put those things, if you had to have them all.