Videos tagged with Malfunction Diagnosis

This video demonstrates the installation and initial live-fire test of a Diablo Trigger from Texas Triggers in a 1971 Romanian Parts Kit RPK. The instructor, exhibiting experienced signals, highlights the trigger's FRT type and AKM platform compatibility. While the first run encountered a minor jam, it was successfully resolved, leading to a positive initial assessment and plans for further tuning.

This in-depth autopsy of a Black Rain Ordnance SPEC15 AR-15, conducted by an expert armorer, reveals critical manufacturing and assembly flaws. Key issues include an undersized buffer spring, a buffer tube striking the receiver, a loose carrier key, an undersized magwell, and a significantly oversized gas port (.089 inches). These problems collectively lead to over-gassing, violent cycling, and component damage, explaining the rifle's failure to function reliably. The analysis emphasizes the importance of proper component tolerances and gas system tuning for AR-15 reliability.

This video details a troubleshooting session for a Desert Eagle .50 AE experiencing failures to return to battery. Through live fire testing, the presenter discovers that a one-handed grip, surprisingly, resolves the cycling issue, while a two-handed grip and full magazines exacerbate it. The presenter concludes that grip technique and magazine load management are key to overcoming the malfunction.

This YouTube video presents a February 2015 AFTE (Association of Firearm and Toolmark Examiners) local chapter presentation by the author of Forgotten Weapons. The focus is on the application of high-speed camera photography, specifically using an Edgertonic camera, for analyzing firearms. The presentation details potential forensic uses, including understanding complex firearm operating mechanisms, identifying the origin of markings on cartridge cases, analyzing bullet impact effects, and diagnosing firearm malfunctions.