How Does a Ncstar 10 X 21 Spy Monocular Work? – Guide, FAQs and More

Do you want to know how a star 10 x 21 spy monocular works?

Let’s find out.

How Does a Ncstar 10 x 21 Spy Monocular Work?

This monocular is easy to use and includes everything you need to get started right away.

  • Simply remove the included eyepiece and attach the included tripod mount.
  • Then slide on the included strap and tighten it around your head.
  • Finally, flip open the cover and adjust the focus wheel until you have the perfect viewing distance.

Ncstar 10 x 21 Spy Monocular

The NCSTAR-10X21 is an excellent choice for the outdoorsman or hunter.


  • Waterproof & Fogproof
  • Shock Resistant
  • Wide Field Of View (50°)
  • LED Light Source
  • Includes Tripod Mount

Other Features


It has a rugged, durable design that will withstand the elements and provide years of service.

Light Source

The NCSTAR-10X2 is also equipped with a powerful LED light source that provides bright illumination in low-light conditions.

Field of View

This monocular features a wide field of view to help you see more than just your target. And it comes with a handy carrying case so you can easily transport it from place to place.

Spotting Scope

The NCSTAR-10X22 is designed to be used as a spotting scope. With its large objective lens, this model offers a great magnification range. You can use it to spot game at long distances, or even to watch birds and other wildlife up close.


This monocular is made of high-quality materials and built to last. Its tough polycarbonate body is waterproof and fog proof. It’s also shock resistant, which means it won’t break when dropped.


  • Magnification Range: 1 – 16x
  • Objective Lens Diameter: 2.5″
  • Eye Relief: 3mm
  • Weight: 7 oz.
  • Dimensions: 5.25″ L x 4.75″ W x 6.25″ H
  • Warranty: 30 Days Money Back Guarantee

NcStar 10X25 Black Monocular/Ruby Lens (N1025R)

The NcStar 10×25 Ruby lens is a high-quality monocular that offers excellent optical performance.

The ruby lens provides an amazing view of the world around you, and it’s easy to see why this monocular has been used by many hunters for years.



This monocular comes with a rubber strap so you can wear it comfortably on your head or neck.


It also features a sturdy aluminum tube construction and a rubberized grip handle.


  • Magnification Range: 1 – 25x
  • Objective Lens Diameter: 2″
  • Eye Relief: 3mm
  • Weight: 12oz.
  • Dimensions: 8.5″L x 6.5″W x 9.5″H
  • Warranty: 30 days money back guarantee
how does a ncstar 10 x 21 spy monocular work

How Does a Ncstar 10 X 21 Spy Monocular Work?

Ncstar 10×21 Red Dot Sight

The NcStar 10X21 red dot sight is a compact, lightweight, and easy-to-use sighting system. It features an illuminated reticle with a range of up to 600 yards.

The NcStar 10X 21 has a rugged construction that will withstand the rigors of field use. This model also includes a flip-up lens cover for protection against dust and moisture.

The NcStar red dot sight is ideal for hunting, shooting sports, law enforcement, and military applications.


Illuminated Reticle

With an illuminated reticle, you’ll always know where you’re aiming.

Compact Design

Its small size makes it easy to carry and store.

Rubber Grip Handle

For comfortable handling, the NcStar 10X2 has a rubberized grip handle that feels good in your hand.

Flip Up Lens Cover

To protect the optics, the NcStar red dot sights have flip-up lens covers.


  • Range: 300 Yards
  • Magnification: 0.6 – 10x
  • Reticle Illumination: Yes
  • Lens Covers: Flip Up
  • Weight: 3.8 oz.
  • Dimensions (L x W x H): 3.9 x 2.3 x 1.4 inches
  • Warranty: Lifetime warranty


The NcStar 10×21 red dot sight is a great choice for the price. It’s easy to use and has excellent battery life.

The only downside is that it doesn’t have any magnification, so you won’t be able to see your target clearly at longer distances. But if you want a cheap red dot sight with no magnification, this one is perfect for you!

Ncstar 10X20 Spotting Scope

The Ncstar 10X20 spotting scope is a versatile tool that allows you to get closer to your targets.

The Ncstar spotting scope is perfect for bird watching, nature photography, and general observation.


Waterproof & Fog Proof Construction

A durable polycarbonate body keeps out water and dirt while providing a clear view of what you are observing.

Large Objective Lens

The large objective lens lets in more light than smaller lenses, allowing you to observe objects from farther away.

Adjustable Eye Relief

You can adjust the eye relief to suit your needs.


  • Waterproof & Fog Proof
  • Polycarbonate Body
  • Large Objective Lens
  • Adjustable Eye Relief
  • Weight: 11.1 oz.
  • Dimensions: 6.7 x 4.8 x 4.2 inches
  • Warranty: One-Year Limited Warranty

Frequently Asked Questions (FAQs)

What Is The Best Way To Clean My Ncstar 10×21 Monocular?

The best way to clean your NCSTAR 10X21 monocular is by using a cleaning cloth. You can use any type of cloth, but the one that you choose should be made from soft material and it should have some kind of absorbent qualities.

It’s also important for the cloth to be large enough so that it will cover most of the lens area. If you don’t have a cleaning cloth, you can use a microfiber towel instead. 

Is There Any Warranty On My Ncstar 10 X 25 Monocular?

Yes, there is a 30-day money-back guarantee on all of our products. If you are not satisfied with your purchase, simply contact NcStar within 30 days of receiving the product and they will refund 100% of your money.

Can I Buy An Extended Battery For My Ncstar 10X25 Monocular?

Yes, you can buy an extended battery for your Ncstar 10X21 monocular. We recommend buying a spare battery because they are very expensive.

However, if you do need to replace the battery, you can easily find them online or at your local electronics store.

How Far Can You See with a 16×52 Monocular?

Wide field of view 66M/ 8000M, it will show you a clearer and farther view, good for bird watching, hunting, hiking, sightseeing, etc.


If you are looking to buy a rangefinder you should buy Ncstar 10 x 21 Spy Monocular. This is the best rangefinder in the market and it has all the features that you need for your outdoor activities.

 If you have any questions feel free to comment below.


  • Sarah Wilson

    Sarah is a content consultant at The Outdoor Stores where she is ready to guide you through the features of a good firearm for your outdoor activities and hunting hobbies. Her expert knowledge and intellectual skills have helped The Outdoor Stores greatly.

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