Scoping in first person is not aligned. To fix this go to mods/update/update.rpf/dlc_patch/mpbusiness/common/data/ai
and edit weaponheavypistol.meta. Scroll down till you find <FirstPersonScopeOffset>.

Replace these 2 lines with these:
<FirstPersonScopeOffset x="-0.00050" y="0.00000" z="0.00400" />
...
<FirstPersonScopeRotationOffset x="-0.10000" y="0.0000" z="0.0000" />