With the qualifier "As I understand it . . ."  It is true, all of the surplus rifles sold by the Civilian Marksmanship Program are received directly from the Army but there's a catch.  The Army also supplies ceremonial rifles to veterans' organizations (AL, VFW) and takes them back when the post turn them in.  They are then forwarded to the CMP to be sold to the public.

Many things happened while these rifles were in the hands of the veterans' organization, and those frequently included cutting down the stock and barrel to match the length of the 1903s that the post might also have.  (Can't have rifles of different lengths marching in a parade!)  Virtually all of the Krags that have been sold by the CMP in recent years have come from veterans' organizations.

There are a number of kinds of chrome plating.  For chromed rifles and bayonets, what is generally done is called "Decorative Chrome Plating".  This is a thin layer of chrome plated over a layer of nickel (which may be over a layer of copper plate).  A good plating house can reverse-electroplate the finish off easily and inexpensively.

You can order a good reproduction Krag front sight from S & S Firearms,  HTH