This simple holder is designed to be printed in rigid filaments like PETG, PLA or ABS, unlike the original model by @Yurshevich_387032. Instead of a belt mount it has two holes for screwing the holder to something with M5 rounded head screws (DIN 7380). Socket cap screws will probably not work.
I printed mine in PETG on an Ultimaker 3 Extended.
The author remixed this model.
scaled up to fit better when printed in PETG and removed the belt cavity for M5 screw holes instead