Finding the right borescope for rifle inspection helps verify cleaning effectiveness, detect wear, and maintain accuracy. The following five Teslong models offer 0.2-inch probes, multi-caliber compatibility, and varying screen sizes to suit different preferences and workflows. Each product is designed to inspect rifle barrels from .20 caliber and up, with features like right-angle mirrors, long insertion probes, and easy plug-and-play use. Use this guide to compare display size, probe length, compatibility, and included accessories.
| Product | Brand | Probe Size | Insertion Length | Display | Key Accessory |
|---|---|---|---|---|---|
| Teslong Rifle Borescope with 4.5” Screen | Teslong | 0.2 inch | 36 inches | 4.5-inch color IPS | Right-angle mirror |
| Teslong Rifle Borescope, 45 Inch Flexible | Teslong | 0.2 inch | 45 inches | Not specified (external device supported) | 3 right-angle mirrors |
| Teslong Rifle Borescope with 5″ Monitor | Teslong | 0.2 inch | 45 inches | 5-inch IPS LCD | Carrying case |
| Teslong Rigid Rifle Borescope with 5″ Monitor | Teslong | 0.2 inch | 26 inches | 5-inch IPS | Right-angle mirror |
| Teslong Rifle Borescope for Phone & PC (USB-C) | Teslong | 0.2 inch | Varies by model | USB-C connected (screen not built-in) | Six mirrors for multi-caliber barrels |
Note: All models are designed for rifles and support barrels down to .20 caliber or larger. They offer plug-and-play operation, with images and videos stored locally on included storage, and several include mirrors and carrying cases for field use.
Teslong Rifle Borescope With 4.5″ Screen
- DESIGNED FOR RIFLE INSPECTION – Close-focusing sensor for inspecting rifle barrels on Windows PC or Android devices. Suitable for evaluating cleaning regimens and diagnosing firearm problems. Not compatible with iOS devices.
- PLUG AND PLAY – 4.5-inch color IPS screen displays and records images/videos in 1920×1080 resolution. Files saved to included 32GB Micro SD card.
- FITS .20 CALIBER & LARGER – 0.2-inch diameter probe easily enters rifle barrels; 45-inch flexible probe covers the bore from breech to muzzle.
Teslong Rifle Borescope, 45″ Flexible Probe
- DESIGNED FOR RIFLE INSPECTION – Close-range camera assists in inspecting the interior of rifle barrels on Windows PC or Android devices. Not compatible with iPhone/iPad; Android OTG support recommended.
- FITS .20 CALIBER & LARGER – 0.2-inch probe enables entry into barrels to inspect cleanliness, throat erosion, tool marks, rifling wear, and fouling.
Teslong Rifle Borescope With 5″ Monitor
- DESIGNED FOR RIFLE INSPECTION – 45″ flexible probe with a built-in 5-inch HD IPS LCD screen and rechargeable battery. No need for external screen; ideal for on-site inspection and diagnostics.
- PLUG AND PLAY – Immediate use after boot; saves images/videos to internal storage. USB connectivity supports multiple devices without extra software.
- FITS .20 CALIBER & LARGER – 0.2″ probe supports entry into most rifle barrels for thorough inspection.
Teslong Rigid Rifle Borescope With 5″ Monitor
- DESIGNED FOR RIFLE INSPECTION – 26-inch rigid probe with close-focusing camera; great for evaluating cleaning regimens or diagnosing firearm problems to save time and money.
- PLUG AND PLAY – 5″ HD color IPS LCD screen; record still images and videos to 32GB Micro SD card. Works with Android, Mac, and PC via USB/Micro-USB adapter; iOS compatibility is not stated.
- FITS .20 CALIBER & LARGER – 0.2″ diameter probe supports entry into rifles for thorough bore inspection.
Teslong Rifle Borescope For Phone & PC (USB-C)
- Upgraded USB-C Borescope – Direct connection to iPhone 15/16 and USB-C Android devices; includes original USB & Micro-USB for Windows/Mac.
- 0.2-inch Diameter Probe – Probes accommodate .20 caliber+ barrels; suitable for inspecting cleanliness, throat erosion, rifling wear, and fouling.
- Six Mirrors Included – Multi-caliber compatibility with five 45° mirrors plus an exclusive 35° 5mm mirror to reduce glare across barrel walls.
Teslong Rifle Borescope With USB-C & 6 Mirrors (NTG100-C)
- Upgraded USB-C Borescope – Direct compatibility with iPhone 15/16 and USB-C Android devices; retains USB/Micro-USB for broader compatibility.
- 0.2-inch Diameter Probe – Designed for rifle inspection with a 5mm micro probe; inspects cleanliness, throat erosion, rifling wear, and fouling.
- 6 Mirrors Included – Wide calibration from .20 to .50 caliber barrels; includes a 35° mirror to minimize glare on curves.
Buying Guide For Rifle Borescopes
Key considerations for selecting a rifle borescope include probe diameter, insertion length, and display options. A 0.2-inch probe fits most .20 caliber and larger rifles, enabling access to the bore from breech to muzzle. Longer insertion lengths, such as 36 to 45 inches, reduce the need to switch between barrel sections during inspection. Display characteristics vary from built-in monitors to USB-C connections for external devices; choose based on whether you prefer standalone viewing, device-based viewing, or both. Mirrors and accessories enhance multi-caliber compatibility, enabling clearer views in difficult angles. Consider whether iOS compatibility is required for your workflow; many Teslong models focus on Windows, Android, and Mac compatibility, with iOS support variably available.
Another dimension is portability versus screen size. Larger screens (5 inches and above) offer easier on-site inspections but may add bulk. For field use, models with long flexible probes and durable carrying cases improve reliability. Storage options—like included 32GB micro SD cards—allow easy capture and review of images and videos. Finally, review compatibility with your preferred operating system and whether OTG support is required for Android devices.
In selecting a model, consider your typical calibers, the required insertion depth, and whether you need a rigid or flexible probe. If you frequently inspect extended barrels or want built-in display independence, a 5-inch monitor model or a USB-C connected system may be best. If you primarily work with Android and PC workflows, a flexible 45-inch model with multiple mirrors offers versatile calibration across calibers.