For the TAR comp, it is down to what is written in the regs, and
the No4 is listed as just No4 with 32 X3 scope,
another part of the regs alows for copies of a militer rifle to be used if it is in the sam
ethics or flavour, style etc. caliber does not matter soe ant thig from .224 to 8mm is ok.
Odd things like being able to use the MaS 54 but rubber cup on any make and type of arm.
As a Judge I would let him use the L39A1 with a L42A1 sighting set up.
So scope or open battle.
So original does not matter for the comp,
and replica scopes, mounts are all alowed.