Medieval Expansion primarily aims to change the vanilla armour model and texture, as well as weapons to fit a more realistic medieval look. All you need to do is grab the armour piece or weapon you're wanting to change and place it in an anvil and rename it. The full list is inside the resource pack folder.
You will need JsonEM and Chime for this to work!
JsonEM: https://modrinth.com/mod/jsonem
90% of ad revenue goes to creators
Support creators and Modrinth ad-free with Modrinth+Compatibility
Minecraft: Java Edition
1.19–1.19.2
Links
Creators
Details
Licensed ARR
Published last year
Updated last year