
Install in:
mods\update\x64\dlcpacks\patchday8ng\dlc.rpf\x64\models\cdimages\weapons.rpf


Optional:
If you want to equip the angled foregrip, you will have to edit the weapons.meta in mods\update\update.rpf\common\data\ai

Open the file and scroll to the ATTACHMENTS section of the weapon, then between an <Item> and </Item>, paste the following lines.

            <Item>
              <AttachBone>WAPGrip</AttachBone>
              <Components>
                <Item>
                  <Name>COMPONENT_AT_AR_AFGRIP</Name>
                  <Default value="false" />
                </Item>
              </Components>
            </Item>

When in-game, use a trainer/mod menu and equip the attachment manually with the following name: COMPONENT_AT_AR_AFGRIP