Newcon Optik NIGHT VISION ATTACHMENT NVS-33 - Manual (Page 16)

__________________________________________
16
Assemble the adapter and mount the night sight
attachment as follows (Fig. 3):
1. It’s necessary to select needed quantity of the plastic
inserts (6) for a particular external diameter of the
objective lens of the daytime riflescope. The
objective lens of the daytime riflescope (7) should fit
loose, but without apparent drift into the adapter (4)
with the installed inserts (6) and loosen adapter screw
(5).
2. After the inserts (6) are installed, the adapter (4) must
be screwed on the adapter ring (2) against the stop
and locked by the retention pin (3) in the counter
clockwise direction.
3. Put the night vision attachment with the fixed adapter
(4) on the objective lens of the daytime riflescope (7)
and fix it by the adapter screw (5).