Teslong NTG500 Rifle Borescope featuring 5" Monitor and 45-inch Flexible Probe | 5mm Bore Scope Fits .20 Caliber & Larger Barrel, 45-inch Long Insertion Cable, 5-inch IPS Screen, Right Angle Mirror

Product Overview

The Teslong NTG500 Rifle Borescope is a diagnostic instrument designed for inspection inside firearm barrels and other narrow cavities. It is specifically engineered to accommodate bore diameters of 5 mm or larger, which corresponds to a .20 caliber and larger barrels. The device comes with a 45‑inch flexible probe that can be inserted into the barrel or other cylindrical passages up to that length, allowing users to reach deep areas that are normally inaccessible.

Key Technical Features

• Probe length: 45 inches
• Insertion cable length: 45 inches
• Bore diameter: 5 mm (compatible with .20 caliber and larger barrels)
• Display: 5‑inch IPS screen with a right‑angle mirror for clear viewing
• Monitor size: 5 inch

Display and Visual System

The borescope includes a 5‑inch IPS (In‑Plane Switching) screen, which delivers a high‑contrast image with accurate color reproduction. The right‑angle mirror built into the probe redirects the optical path, ensuring that the view on the screen matches the actual orientation of the inspected area. This design allows the user to focus on details while the device is inserted in a vertical or horizontal position.

Probe and Cable Configuration

The 45‑inch flexible probe is made to follow curved surfaces and can navigate through bends within a barrel. Its flexible construction maintains optical fidelity while allowing the probe to be maneuvered around obstacles. The 45‑inch cable that connects the probe to the display is long enough to keep the working area at a safe distance from the user while maintaining signal integrity.

Compatibility and Usage

The device is designed for firearms that have a bore of 5 mm or larger. This includes .20 caliber firearms and any larger calibers, ensuring that the optics fit within the internal dimensions of the barrel. Because it is a borescope, it is suited for internal inspection tasks such as checking chamber condition, barrel integrity, or locating obstructions. The device is not a replacement for a firearm’s safety checks but serves as a visual aid for maintenance or troubleshooting.

Installation and Operation

Installation of the probe into a barrel is straightforward: insert the probe until it reaches the desired depth, then connect the cable to the 5‑inch display. The right‑angle mirror ensures the image is oriented correctly on the screen, eliminating the need for the user to hold the probe in a specific position. Once connected, the device is ready for immediate inspection.

Build and Materials

The probe and the display housing are constructed from durable plastic components that resist impact and environmental wear. The optical fiber that carries the image signal is designed to maintain clarity across the 45‑inch flexible length. The right‑angle mirror is a high‑reflectivity surface that is embedded within the probe tip.

Practical Benefits

Using the borescope allows users to inspect internal barrel conditions without disassembly, reducing downtime and simplifying maintenance routines. The 5‑inch IPS display provides a clear visual reference, and the 45‑inch cable ensures that the operator can remain at a safe distance while examining the interior. Because the probe can bend, it accommodates curved sections of a barrel or other narrow cavities.

Summary

The Teslong NTG500 Rifle Borescope delivers a focused visual solution for inspecting firearms with a 5 mm bore or larger. Its 45‑inch probe and matching cable length provide flexibility, while the 5‑inch IPS display and right‑angle mirror give a reliable view. The device is engineered for durability and ease of use in inspection tasks, making it a practical addition to maintenance procedures.