A buckle part (2) of a belt buckle (1), wherein the buckle part (2) comprises at least one connecting part (4) for releasably connecting the buckle part (2) to another buckle part (3) of the belt buckle (1) and at least one bar (5) for fastening a belt (26) on the bar (5) of the buckle part (2), wherein the buckle part (2) also comprises at least one clevis type eyelet (6) for hooking a karabiner into the clevis type eyelet (6).