Weapon inventory

I’m trying to make a blueprint weapon inventory, the way I’m trying to do this is you have primary, secondary, and equipment slots, and I want there to be multiple types of each class. For example Primary- Ak, M4, Minigun, smgs ect.
I know what I need to do but just can’t seem to figure out how to do it. Any help at all will be appreciated !

Bump ! Any help will be appreciated !

watch this

very helpful thanks @saeedc