Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
The kit was from 1974.My guess is this predates 10mm.
I don't think its a 'factory' set.
The case appears to be just a generic aluminum one and someone cut the foam to accommodate the the three uppers and the mags.
Heck I've done this with a couple guns and similar cases.