MICRO SMG REPLACE
Installation:
mods/update/x64/dlcpacks/patchday8ng/dlc.rpf/x64/models/cdimages/weapons.rpf

TACTICAL SMG REPLACE
Installation:
mods\update\x64\dlcpacks\mp2023_01\dlc.rpf\x64\models\cdimages\weapons.rpf

OR INSTALL VIA EMF FOR EASIER EXPERIENCE
https://www.gta5-mods.com/tools/car-weapon-folder-for-replacer

Feedback or issues in the comments
https://www.gta5-mods.com/users/ThatS2K