Videos tagged with Barrel Trunnion

This video provides an expert-level overview of an Armalite AR-18 parts kit, detailing its components and historical context. Mark Serbu, a gun designer, examines the kit, highlighting its origins from Sterling in England, Costa Mesa, California, and Hawa Hoa in Japan. He discusses the differences between the AR-18 (machine gun) and AR-180 (semi-auto), noting the auto sear's location in the upper receiver. The video also touches on the unique gas system with a fixed piston and moving cylinder, the barrel extension integrated into the trunnion, and the challenges of repairing a torch-cut receiver.

This video features Jim Fuller, an AK-47 expert, discussing the complexities and nuances of building and working on AK platforms. He highlights the inherent challenges due to varying international specifications, the labor-intensive nature of proper AK construction, and the importance of quality parts. Fuller emphasizes that understanding and mitigating potential issues is key to successful AK gunsmithing, contrasting Eastern and Western manufacturing philosophies.

This video from TFB TV puts the Heckler & Koch G36K's reported accuracy issues under heat to the test. Instructor Alex C. conducts a controlled experiment, comparing cold barrel accuracy with hot barrel accuracy after sustained full-auto fire. The results suggest that, in this specific test, the G36K maintained consistent point of impact and group size, challenging the claims of a significant 'wandering point of impact'. Further testing at greater distances is recommended for a definitive conclusion.