CZ93X62
Official forum enigma
I am no Mauser maven, but my interpretation is that a whole lot of people produced generic Mauser actions, as alluded to above. The CZ-527 and -550 are commercial/generic Mauser 98 actions with controlled round feeding, a signature feature of the Mauser system. Along with those Czech Mausers I have a post-war Husqvarna Mauser 98 in 30-06.