Teslong Workbench Borescopes and Rebel the Shopcat

This video demonstrates the utility of Teslong digital borescopes for firearm inspection. The presenter, an engineer by trade, highlights their affordability and versatility for checking barrel condition, identifying fouling, inspecting gas ports, and even examining internal suppressor components. Both USB and Wi-Fi models are showcased, emphasizing their ease of use with computers and mobile devices, respectively, and the availability of useful attachments like right-angle mirrors.

This video introduces Teslong's new 'Focus and Fold' collapsible borescope, designed for easier travel and improved usability. The borescope allows for detailed inspection of firearm barrels, aiding in consistent cleaning processes and identifying potential issues. Teslong offers USB and Wi-Fi enabled models compatible with various devices, with prices ranging from $50 to $230.

This video provides an in-depth review and comparison of three Teslong borescope variants: a standalone unit with a 'Game Boy' style controller, a smartphone-connected wireless variant, and a computer-connected flexible cable version. The reviewer highlights their ease of use, image quality, and specific applications for tracking barrel life or capturing high-resolution imagery. The standalone and computer versions are recommended over the wireless variant due to lag issues.

This video introduces Teslong's affordable borescope options for firearm inspection. The presenter highlights USB, WiFi, and standalone models, emphasizing their accessibility for gun owners. The standalone unit features a 5-inch screen and 720p recording, with included right-angle mirrors for detailed inspection of rifling, the crown, and firing pin chambers. Pricing ranges from approximately $60 for USB models to $200 for the top-tier standalone unit.

This guide details the process of diagnosing and repairing an owner-induced feeding problem in an AR-15 upper receiver, specifically addressing a burr on the barrel extension's feed ramp. Expert gunsmith Chad Albrecht demonstrates meticulous inspection, burr removal, and polishing techniques to restore reliable feeding. The video emphasizes that such modifications, while often overlooked, are valid solutions for specific AR-15 malfunctions.

This guide details a diagnostic technique for AR-15 bolt carrier groups, focusing on efficiency rather than simple pass/fail. Developed by Chad Albrecht of School of the American Rifle, it uses custom gauges and cutaway components to illustrate gas dynamics, critical seals, and potential failure points like gas leaks. This advanced method helps troubleshoot functionality issues and understand the nuances of the AR-15's internal gas system.

This video provides a critical, expert-level inspection of a problematic AR-15 Bolt Carrier Group (BCG) by Chad Albrecht of School of the American Rifle. The analysis details numerous manufacturing defects, including an undersized bolt tail, excessive firing pin protrusion, oversized firing pin and cam pin holes, and a failing headspace check. The content highlights the importance of precision gauging in identifying critical failure points that impact rifle reliability and safety.

This guide details a specialized technique for swapping an AR-15 rear takedown pin without requiring a full disassembly. It leverages insights from Chad Albrecht of School of the American Rifle, emphasizing the use of a modified 1/16 inch Allen wrench or a specialized tool to manage the detent. This method is particularly useful for AR-15 variants with collapsible stocks, offering a more efficient approach to maintenance.