Obviously this is not for use with a real gun.

The video’s description makes little sense when translated from Japanese to English, but here it is for what it is worth …

Nervous prototype parts have been assembled from the factory, complete reconditioning. We are currently in volume production. First I can only say with one hundred pieces. Is expected to release at the end quietly. But while their work and thus can get items in a dream, or tears and feeling 申Shimashou. Really, is not it what I wanted this occasion. And work is better. Stop arm is fixed to a leather belt, wide adjustment range Berukurotepu adopted

[ Many thanks to Heath for emailing me the link. ]