The Javelin CUU needs its specially designed case to protect parts like the hand grips, afocal lens
, eyepiece, and battery case.
A significant performance improvement in the Block I CLU is an increase in target identification range through use of a larger afocal lens
(12X vs 9X) plus the addition of electronic zoom capability.
At 1X magnification, the Ugo night channel offers a 40 [degrees] FOV - a figure that reduces to 10 [degrees] if magnification is increased to 4X via an afocal lens
adapter which can be "fitted in the field by the user.