I just checked them out domains.google. It looks like official Google registration registrar for domains open for customers. 12$ for a .com tld domain and same for the renewal each other is quite cheaper than other registrars I have signed up to.
I wonder if purchasing a domain name from Google would impact on SERP or not. Also, .gold, .energy, .credit, .accountants tld domains have higher price of $120 registration.