The K is for the general Kornilov Shock infantry Regiment later Division
The blue patch with the deaths head insignia is also for this unit
the white-blue-red chevron was used by the White Volunter Army later Armed Forces of South Russia 1918-1920.
mpb it looks like this site has been abandoned by everyone except me and i only look at it every 2 weeks or so. If you want more info you can go to either:
axishistoryforum.com
greatwarforum.org