постійний репер
aiming dot; aiming mark; crosshair; crosswires; pointing mark; telescope laying mark
collimating
collimating sight
index line / mark
marker lights (mark lights)
night fighting mark
shooting mark
shoulder flash / mark / patch
stadia lines (hairs, mark)
weight zone mark
wide of the mark
shot to mark
Mk 19 grenade launcher (pronounced Mark 19)
adjustment mark
aiming mark (on a sight graticule)
auxiliary aiming mark (point)
auxiliary aiming mark
bench mark
center mark
center mark of barrel
coast mark
connecting rod cap mark
correct contact mark
index mark (of elevation receiver)
yardage mark
zero mark
victory mark
filling mark
flywheel mark
zero mark of gas regulator
front sight mark of a submachine gun
full-level mark