Dec 032015
A video describing a Mauser bolt-action rifle with a factory modification: a periscope. This would allow the shooter to stick the rifle up above a trench and shoot at the enemy without putting his own noggin into the field of fire. Looks incredibly cumbersome, but under the circumstances, it’s better than getting shot. A modern version would be something like a webcam that clips to your rifles optics and runs down to a small screen or something like a militarized Google Glass. That would have the advantage of not only being far less cumbersome, but also lighter, cheaper and with the ability to aim any which way, including around corners.