Chambered in .22lr.
https://www.thefirearmblog.com/blog/2019/12/10/glock-44-22lr/
https://us.glock.com/en/pistols/g44
https://www.thefirearmblog.com/blog/2019/12/10/glock-44-22lr/
https://us.glock.com/en/pistols/g44