Firearms Management Regulations for Self-Defense of Servicemen Article 19

The firearms or the ammunition under acting custody by the management organization will be sent to the newly management organization when the serviceman is transferred or receives training, or will be sent to the police organization of the holder's registered permanent residence in terms of the Firearms Management Act for Self-Defense of Servicemen when the holder is demobilized, retired or stopped the service due to external assignment.
中文原文 現役軍人自衛槍枝管理辦法第19條
軍人自衛槍枝管理機關代管之槍枝彈藥,遇有持有人調職、受訓時,其槍枝即送新隸屬之槍枝管理機關代管,如持有人退伍、除役或外職停役脫離軍職時,其槍枝即送持有人戶籍地直轄市、縣(市)政府警察機關依自衛槍枝管理條例之規定辦理。

English translation for reference only; the Chinese text prevails. Not legal advice.