Are NcSTAR optics water proof, fog proof, and shock proof?

All NcSTAR scopes are rigorously tested to stand up to the toughest conditions.  First,
all of our scopes are dry nitrogen purged expelling all oxygen making them
impervious to fog and moisture build up.  Next, Our scopes are dunked in a 1 meter
tank of water to ensure that they are properly sealed and water tight.  The last phase is
shock testing.  Our scopes are mounted on a platform that replicates the recoil and
pressure over .50 cal.  Should any of these features fail due to defect, we stand behind
our products 100%.

My scope has run out of adjustment therefore I cannot zero it.  Is it defective?

Chances are, your scope is NOT defective.  In many cases it is a problem with the
mount set-up.  Check to be sure that your mounts and rings are straight and properly
tightened.  Shimming the scope will likely solve the problem, as long as it is done
properly.  If you shim your scope improperly then internal damage may be the result.
If you are unsure how to properly shim a scope then consult a trusted gunsmith.

My compact scope will not fit on my bolt action rifle.  Is there something that can be
done?

 Compact scopes are meant to be mounted on short carbine style rifles.  For example, a
compact scope will not fit a long bolt action with standard bases simply because there
will be not be enough mounting surface on the main tube to stretch the length of the
action.  An alternative would be to mount a one piece Weaver Style Base that covers
the length of the action.  For a bolt action rifle a full size scope will probably be most   
suitable.

 What do the numbers on my rifle scope represent?

The numbers printed on NcSTAR scopes represent the power size and the objective
size in millimeters.  For example, if 4x30 is printed on your scope then the
magnification of your scope is fixed at 4 power (object will appear 4 times closer than
it actually is) and the objective lens size is 30 millimeters in diameter.  If 3-9x42 is
printed on your scope then the magnification is variable between 3-9 power (able to
zoom in and out between 3 and 9 by adjusting the power wheel) and the objective lens
size is 42 millimeters in diameter.

I need an owners manual for my NcSTAR product.  Can I order one directly from
NcSTAR?

You can download a copy of the instruction manual from this site.  If you cannot find
the instructions for your particular item, then call our Tech Support Customer Service
Center at 1-866-627-8278, and we will send you a copy. 

How does the P4 Sniper Reticle work?

Click Here for a tutorial and how to properly use the P4 Sniper Reticle.

How does the Rangefinder Reticle work?

Click Here for a tutorial and how to properly use the Rangefinder Reticle.

How do I change the battery in my NcSTAR scope?

For most NcSTAR illuminated scopes the battery housing will be located inside of the
rheostat knob (the knob that controls the on/off function of the illumination).  You will
notice a thin cap on top of the rheostat knob.  Hold the knob firmly in place and twist
the top cap counter clockwise.  Unscrew the cap completely to reveal the battery
housing.  Remove the old battery and dispose of properly.  Be sure to replace it with
the same battery type, by not doing so may cause damage to the unit.

 How do I install my sunshade to my NcSTAR rifle scope?

You will want to make sure that you are using an NcSTAR brand sunshade on an
NcSTAR scope that is sunshade compatible.  On the end of the objective housing
you will notice a ring.  Twist this ring counter clock wise to remove it.  Once
this ring is removed you will see the exposed threads which the sunshade attaches to.
Twist the sunshade onto the scope clockwise until it is snug, but do not over tighten.
Once you have the sunshade on install the ring in the same fashion to complete the
process.

WHow can I contact NcSTAR for live tech support?

You can reach tech support representative by calling us toll free at 1-866-627-8278. 
We will be happy to assist you with questions, comments, or concerns that you may
have with your product.