Talk:12.7cm Twin Gun Mount Model B Kai 4 (Wartime Modification) + Anti-Aircraft Fire Director/@comment-217.117.119.67-20190625152201/@comment-12.38.3.234-20190822184630

Yes, both the air and LoS bonuses will apply. I don't have this gun yet, but the GFCS works great with the Model A K3 gun giving both bonuses.