A bit random - Gun help.

Alright, so i have a pretty good gun system all set up, and the only current way to get a gun or few is by going onto the storage where its located and dragging it to storage tools (so when i test play my gun spawns in my inv)

Now that's cool to know and all, but i was wondering if anybody knew how to make it so i was able to like to click the name of the gun on a part and equip it in my inv, and when i click another rifle, it replaces that current gun.

Just a bit curious.