Teslong Rifle Borescope for Phone & PC - USB-C Probe for.20 Cal and Up

Our review of the Teslong NTG100-C rifle borescope finds it best suited to shooters and gunsmiths who need a straightforward, capable inspection tool for rifle barrels. The single biggest reason to buy is its updated USB-C compatibility that allows direct connection to iPhone 15/16 and other USB-C devices, removing the need for adapters while retaining support for Mac, Windows and older Micro-USB Android phones. The probe's 0.2 in diameter and 45 in length make it practical for inspecting everything from muzzle to chamber on most rifles.

Key Features

• USB-C compatibility: Direct plug-and-play with iPhone 15/16 and USB-C Android devices for quick mobile inspection without extra adapters.
• Thin 0.2 in probe: A 5mm micro probe and HD close-focus camera fit.20 caliber and larger barrels to reveal fouling, rifling wear and throat erosion.
• Six mirror options: Five 45 angled mirrors and a 35 angled 5mm mirror reduce glare and adapt to.20 to.50 caliber barrels for clearer side views.
• 45 in flexible probe: Long enough to inspect from muzzle to chamber in a single pass, then coils compactly into the included case for storage.
• Adjustable LEDs: Six brightness levels provide even illumination so fine details are visible in varying barrel conditions.
• Waterproof and rugged: A waterproof probe and corrosion-resistant metal gooseneck ensure durability and easy post-use cleaning.

Who It's For

The NTG100-C is aimed at serious shooters, hobbyist gunsmiths and range staff who need to monitor barrel condition and diagnose fouling, copper build-up or erosive wear. Its mobile-first USB-C cable and long flexible probe are particularly useful for people who want quick inspections using a phone or tablet in the field.

It may be less attractive to those who only need occasional visual checks of large-bore firearms or who prefer wireless solutions; the wired connection and hands-on mirror positioning assume a user comfortable handling a probe and phone during inspection.

Pros & Cons

Pros

• Easy phone and PC use thanks to the added USB-C cable and included USB and Micro-USB cables.
• Clear close-focus images from the 5mm HD probe help identify fouling, tool marks and rifling wear.
• Versatile mirror set and adjustable LEDs deliver useful side views and controlled illumination across calibers.
• Durable, waterproof probe and braided cables stand up to repeated field use.

Cons

• Wired setup requires careful cable handling during inspection and is not wireless.
• Users inspecting very large or non-rifle barrels may need a different probe size or tool.

Specifications

Our Verdict

The Teslong NTG100-C is a practical, value-minded borescope for maintaining rifle accuracy and catching barrel issues early. Its direct USB-C phone support, long flexible probe and mirror options make it a useful tool for shooters and gunsmiths who inspect a variety of calibers. For the price it delivers sound durability and image quality, making it a smart buy for anyone who performs regular barrel maintenance.

Frequently Asked Questions

Does this work with iPhone 15 and 16?
Yes. The NTG100-C includes a dedicated USB-C cable for direct plug-and-play use with iPhone 15/16 and other USB-C devices.

What calibers will the probe fit?
The 5mm probe fits.20 caliber and larger barrels; supplied mirrors support roughly.20 to.50 calibers for side viewing.

Is the probe easy to clean?
Yes. The probe is waterproof and the metal gooseneck is corrosion-resistant, allowing for straightforward post-use cleaning.