I created a copy of the weapon in geck with my own characteristics, tried to make it concealed, but it didn't work out. In GECK, I found something similar to this list of hidden weapons "TheProfessionalWeaponsList". Added to this list, but alas, the weapon did not become stealthy. I'll tell you right away that I copied a concealed weapon.
Where is the list of concealed weapons in GECK and what is it called?