@Flawless had some great UI suggestions here for the weapon sacrifice UI: Sacrificing weapons should always count towards which weapon type you sacrifice - #13 by Flawless – support for batch sacrifice without sacrificing your sanity!
I’d also really appreciate filter and sort to aid in inventory management, with priority #1 being filter by weapon type and weapon mark. Now that we have the tools to amass a variety of weapons within a class that all look more or less the same on the Inventory screen, this would be a great boon to “information, navigation, and clarity”. 
Renaming weapons would also be great, someone please tell me if this is actually in the base game atm!!