Springfield 1922 M1/M2?

[HOOKED ON HISTORY]

A friends son inherited this rifle and I would like to provide the lad with more information.
Very nice condition and appears early based on the SN.
Based on the photos I cannot tell if M1 or M2. The receiver marked M1 but the Cocking nob appears to be an M2. I have inquired about the barrel date.
Any input welcome. I am trying to encourage his interest in the hobby.