Quick check:
1920s M94SRC 32 Spl., curved steel butt: 13"
1906 M92 38 WCF, curved steel butt: 12 and 3/4"
1951 M336SC 35 Rem., plastic butt: 13 and 1/2"
M92 Rossi 44 mag, curved steel butt: 13 and 1/2"
Both of the M92s (real and clone) are 24" barrel rifles, not carbines.