Can you use a gun borescope as an endoscope or visa versa?

You can use a gun borescope for non-gun inspections, but they are optimized for looking inside a gun barrel with a focal distance of ½ to 1 inch, so it won’t work for all applications. The side-view mirrors are best for up-close surface inspections and won’t have as wide of a field of view as our dual-lens camera probes. Gun borescopes are typically rigid probes because that makes them easier to handle and turn inside the barrel, but it’s not a requirement. Our regular inspection endoscopes are suitable for gun inspection so long as they fit down the barrel. Single-lens camera probes will work the best because they include a right-angle mirror accessory. The right-angle camera on our dual camera lenses will NOT work well to inspect the flutes inside of a rifle barrel because they usually are too close to the lens and the focus will be blurry.

Why are there three mirror accessories included with my borescope & why does one have a “red cap” on it?

The side-view mirrors give the user a 90-degree side-view when inspecting inside gun barrels. Since they are so small, they are also delicate and can bend if, for instance, the borescope falls onto the ground. We provide extra mirrors because damaging or losing these small mirrors is a common occurrence. The mirror with a red cap on it has a special angle that should help reduce glare - if you are experiencing issues with glare in your mirror then try using the red cap mirror and see if your view improves.

Do you make other mirror sizes?

Yes, you can find the 5-Mirror Set on our accessory page. Teslong borescopes usually come with a 0.20-inch diameter mirror to fit .22 caliber or larger barrels. While these mirrors will fit in larger barrels just fine they will have some slop and move around, which can affect focus and image quality. To get the best focus and see the largest area we offer the 5-Mirror Set designed to inspect .22, .243, .30, .38, and .40 caliber barrels.

What is an all-in-one endoscope or borescope?

An all-in-one endoscope or borescope is one that includes its own screen and does not require another device to function. All-in-one endoscope cameras also have their own rechargeable battery and a memory card to store photo and video content.

What is a USB endoscope or borescope?

A USB endoscope, or borescope, consists of a camera probe and USB cord. This type of device must be plugged into a smart phone, tablet, PC or Mac computer to work, it doesn’t have a battery or memory - photos and video would be stored on the device it is plugged into. USB devices are not usually compatible with iPhones or iPads because iOS devices do NOT have USB. If you have an iOS device look at a stand alone or WiFi compatible device.

What is a WiFi endoscope or borescope?

WiFi endoscopes and borescopes use a WiFi transmitter to send their signals to your smart device, where they are viewed and stored using an app. Endoscopes and borescopes with WiFi transmitters are compatible with iOS (Apple iPhone & iPad) devices. They will also work with Android devices and since they plug into the WiFi transmitter with a USB plug they are also compatible with Apple OSX and PC computers.

How do you use a borescope with a screen?

A borescope with a screen is very easy to use. First, make sure the device is fully charged. Next, install the camera probe into the monitor - it will either thread onto the monitor or it will plug into the monitor. Press the power button for a few seconds and the screen will illuminate. Use the Mode (M) button to switch between photo, video and viewing modes. All you have to do now is insert the camera probe into something you are inspecting and record photos and video by pressing the camera button.

What is the difference between an endoscope and a borescope?

Generally, “endoscope” is a medical term for a surgical device, but we frequently call our products “industrial endoscopes” to avoid confusing them with medical endoscopes. Teslong does not make any medical-grade surgical products. “Borescopes” is a term that is basically interchangeable with “industrial endoscopes,” however we refer to all of our firearm inspection cameras as “borescopes” and the rest of our inspection cameras as “industrial endoscopes.”

How much of a difference does the screen size make in a stand-alone inspection camera?

Although the screen sizes and resolutions are different on some of our endoscopes, they all record video at 720p resolution or higher. The resolutions you see on the screen can range from the smallest 854 x 480p resolution, 4.5-inch screen up to the 1280 x 720p resolution, 5-inch screen. Obviously, larger screens are going to give you a better view of what the probe sees so if you need an inspection camera to perform on-site inspections and solve problems right away then you’ll want the biggest screen. If you are more interested in the recorded video and photo content, then a smaller screen should work just fine.

What is the difference between dual-lens probes and single-lens probes with mirrors?

Telsong’s camera probes typically are available with either a single-lens design, plus a right-angle mirror, or they are available with a dual-lens design. The single-lens-with-mirror probes are less expensive, and they are better for looking sideways at surfaces up close. Most commonly, this benefits Teslong’s gun borescope customers. If you use a dual-lens probe for this type of application the right-angle lens will actually be too close to the gun barrel surface and sharp focus will be impossible. This is why all of our gun borescopes use a single lens with a mirror instead of a dual lens. For most other applications, like looking down a spark plug hole into the combustion chamber of a car engine, the dual lens design typically works better and gives a wider field of view.

Who makes the best borescopes?

Teslong has been making gun barrel inspection cameras for over five years that started after we were approached by a ex-military sharp shooter looking to confirm his precision rifle cleaning process. We make stand-alone, USB, and WiFi devices to inspect rifles, and pistols with rigid or flexible probes.

NTG450/NTG450H Rifle Borescope with 4.5-inch HD Screen

SKU TSNTG450

$139.99 - $159.99

$139.99

$139.99 - $159.99

$139.99

• 4.5 in Tempered Glass Screen - No App Needed
• 45 in Flexible or 26 in Rigid Probe
• Fits .22 Caliber or Larger Barrels
• LED Ring Light Illuminated
• Removable Side View Mirror

Camera Type: 45 in Flexible Probe

45 in Flexible Probe

26 in Rigid Probe

Quantity

• Free shipping on orders over $149
• 12-month warranty
• 30-day money-back guarantee

Frequently Bought Together

NTG450/NTG450H Rifle Borescope with 4.5-inch HD Screen

$139.99

Select Options

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Camera Type *

45 in Flexible Probe

26 in Rigid Probe

Teslong 5-Mirror Set For NTG100/150/450/500 Borescopes

$25.99

Subtotal:

$165.98

NTG450/NTG450H FLEXIBLE RIFLE BORESCOPE

With 4.5-inch screen and flexible probe designed for rifle inspection

RIFLE BORESCOPE COMES WITH A 4.5INCH IPS MONITOR

This device is ideal for those who do not carry a smartphone or do not wish to connect a camera device to their phone. This borescope is very useful to monitor the build-up of carbon and copper fouling and to visualize what cleaning products do or don’t work well. This borescope is also invaluable for inspecting the barrel of any used firearms you are considering purchasing. Wear, rust, pitting, fire-cracking, throat erosion, and other defects can easily be seen before you make a purchasing decision. This stand-alone unit is easy to transport to a gun show or shop.

            
                4.5 inch WVGA ips screen
              
                0.2 inch diameter camera probe
              
                45-INCH FLEXIBLE cable / 26-inch rigid rod
              
                2500mah battery

DESIGNED FOR RIFLE INSPECTION

NTG450 - 45-INCH FLEXIBLE CABLE
NTG450H - 26-INCH RIGID ROD

FITS 0.22 CALIBER AND LARGER
The 0.2-inch diameter probe allows easy entry into rifle barrels as small as 0.22 caliber, to inspect cleanliness, throat erosion, tool marks, rifling wear, chamber damage, and fouling.

6 LED RING LIGHTS
Adjustable for brightness to give the camera a perfect view of the darkest inspection areas. With the adjustable and detachable 90° side-view mirror, you can check the rifle barrel wall, or remove it to check the firing pin.

4.5 INCH WVGA IPS SCREEN

BUILT-IN 4.5-INCH WVGA IPS SCREEN
Record still images or video at high definition 1280 x 720 resolution.

BUILT-IN 32GB MICRO SD CARD
Save pictures and videos for reference later. Built-in microphone and speaker to record video with voice and play on the monitor.

2500mAh CAPACITY BATTERY
A built-in 2500 mAh rechargeable lithium-ion battery with high capacity that supports long use & fast charging. It lasts up to 4 hours in a recommended temperature range of 32°F to 113°F (0°to 45°C).

SIDE-VIEW MIRRORS

INCLUDES 5 DIFFERENT SIZES OF MIRRORS

• 5mm diameter for 0.22 caliber

• 6mm diameter for 0.243 caliber

• 7mm diameter for 0.30 caliber

• 8.5mm diameter for 0.38 caliber

• 10mm diameter for 0.40 caliber & larger

NO APPS NEEDED

This borescope requires no apps, just turn on the 4.5-inch color IPS LCD screen to view and record still images or video at high definition 1280 x 720 resolution to the included 32 GB micro SD memory card.

Rifle Borescope Comparison - Stand-Alone Models

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-	Shop Now	Shop Now	Shop Now	Shop Now	Shop Now
Model Number	NTG200H	NTG450	NTG450H	NTG500	NTG500H
Price	$215.99 USD	$139.99 USD	$159.99 USD	$179.99 USD	$225.99 USD
Screen Size	4.5-inch	4.5-inch	4.5-inch	5-inch	5-inch
Screen Resolution	854x480 px	854x480 px	854x480 px	854x480 px	854x480 px
Screen Panel Type	IPS	IPS	IPS	IPS	IPS
Tempered Glass on Screen	✓	✓	✓	✓	✓
Probe Type	26-inch Rigid - Folds In Half	45-inch Flexible	26-inch Rigid	45-inch Flexible	26-inch Rigid
Focus Mechanism	Manual Focusing Ring	Adjustable Mirrors	Adjustable Mirrors	Adjustable Mirrors	Adjustable Mirrors
Inch Scale on Probe	x	x	x	x	✓
Interchangeable Camera	✓	✓	✓	✓	✓
Image Capturing Resolution	1920 x 1080 px	1920x1080 px	1920x1080 px	1920x1080 px	1920x1080 px
Video Recording Resolution	1280x720 px	1280x720 px	1280x720 px	1280x720 px	1280x720 px
Memory Card	32GB microSD card (installed)	32GB microSD card (installed)	32GB microSD card (installed)	32GB microSD card (installed)	32GB microSD card (installed)
Built-in Battery	2500mAh lithium-ion battery	2500mAh lithium-ion battery	2500mAh lithium-ion battery	3500mAh lithium-ion battery	3500mAh lithium-ion battery
Battery Working Hours	4 hours	4 hours	4 hours	4 hours	4 hours
LED Ring Light	✓	✓	✓	✓	✓
IP Rating	IP45 monitor, IP67 probe	IP45 monitor, IP67 probe	IP45 monitor, IP67 probe	IP45 monitor, IP67 probe	IP45 monitor, IP67 probe
Microphone and Speaker	✓	✓	✓	✓	✓
Accessories	5x mirror kit, USB-C cable, box	5x mirrors, USB-C cable, soft case	5x mirrors, USB-C cable, box	5x mirrors, USB-C cable, hard case	5x mirrors, USB-C cable, box

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