Thx for info on ammo. It explains a lot. The basic design from the comic strip could stand a little more practicality. In order to achieve any accuracy with open sights, it is necessary to have both front and rear sights as far apart as practical. You have to get an accurate alignment from rear to front to target. A short sight base is characteristic of pistols and, therefore for short range. The type ammo you have suggests that this weapon can be used at a fairly decent range, like a couple hundred yards. In this case, an accurate sighting mechanism is needed. Suggest either placing a front sight on the end of the barrel, and a rear sight such as found on M16 or Steyer (sp?). Or an Optical sight. Or a electronic video sight like we have on videocameras. Given the latter and with low recoil, the gunner need not place his/her head in contact with the weapon. Despite my commentary on the weapon, it looks just fine.

Gordon