Hi! I'm planning on making a server using these guns and I've done something like this before using Mr Crayfish's Gun Mod because all the items had their own name, I really like this mod a lot but I realised that every single gun when I press F3+H have the same name being "tacz:modern_kinetic_gun", maybe there is a work around if i have to give it any tags lets say if I want to give players guns through a command block, or if I'm doing something wrong and there is a way to give specific guns. When I tried to do "/give tacz:"
and then try and to look for the guns, there is a limit of items, I will provide screenshots and it will be definitely appreciated if this can be resolved.

You need to write the nbt for gun item. like
/give @p tacz:modern_kinetic_gun{GunId:"tacz:ak47"}