BSA Optics BOW30 Dot - Manual (Page 12)

ATTENTION:
THE OBJECTIVE LENS (FRONT) OF THE
RED DOT SIGHT IS ANGLED. IT IS ANGLED FOR THE PROPER
OPERATION OF THE RED DOT.
12
must be taken to not bump the sight or loosen more than one screw
at a time. Otherwise, sight in adjustments may be lost. Keep manual,
warranty and unused spacers in the shipping box for future reference
and use.
We hope that your increased understanding of the design and
capabilities of the BSA
® BOW mount will allow you many years of
enjoyment and satisfaction. If you should have any questions, please
feel free to direct them to the address and phone number listed on
your warranty card.