Installation Guide:

(Make sure its in your mods folder.) Simply extract the files from the archive and place them into
"mods\update\x64\dlcpacks\mp2024_01\dlc.rpf\x64\models\cdimages\weapons.rpf\"

Alternatively, you can opt for adding modded weapons into an addon DLC.

FiveM Installation Guide:

Create a folder inside your FiveM Server as a Directory named "vfccp" or whatever you choose

Drag the "fxmanifest.lua" & "stream" folder into your created folder or the one provided.

Go into your servers "server.cfg" and type "start [resource name]"