the karabiner 98 a have in his military configuration the same trigger guard as any other mauser.
but your geco rifle here have maybe a very typical guard for this firm.
please take a look: a 10,75x57 marked only with geco and a 9,3x57 from karl barthel/suhl made for geco

this guns coming from sweden, allways the same style. I ask myself if all M 98 sporter's were made from Karl Barthel for Geco. we need to see more geco sporting rifle's but it seems that this firm's product's had a special look.