I am amazed at this lugers technology from WW2.
Since the weight of the light assembly is not hung off the end of the barrel,it does not effect the recoil of the cannon.So function is not effected. It also uses human capacitance to activate the light.
This technology reminds of my favorite part of the recent movie "The Redtails". Where they portrayed what a gamechanager the ME262 was in the air war.Thank heaven it was all to little to late.
Bob