Moving Metal with a Polished Hammer

This YouTube video offers practical tips and techniques for polishing stainless steel firearm components. The content focuses on achieving a high-quality finish on gun parts, likely aimed at gunsmiths, hobbyists, and firearm enthusiasts looking to customize or maintain their weapons. The video emphasizes real-world application and likely demonstrates various methods and tools used in the polishing process for stainless steel firearms.

This video showcases the X-PRT90, a three-position FRT specifically designed for the FN P90 platform. Unlike 3D printed alternatives, the X-PRT90 features robust construction with all-metal components, including stainless steel and aluminum parts. The installation process is aided by an included jig, allowing for integration into the factory P90 trigger group. The speaker emphasizes the durability and quality of the metal construction over plastic alternatives.

This video from School of the American Rifle highlights critical manufacturing defects in AR-15 bolt carrier keys, specifically focusing on rough internal bores. Lead instructor demonstrates how a poorly finished carrier key can cause significant friction, premature wear on components like gas tubes, and operational issues, contrasting a problematic new Colt carrier with a well-functioning older model. The expert emphasizes the importance of a smooth bore for reliable function and longevity of expensive parts.

This video provides a detailed, step-by-step guide to the full disassembly of the WW2 3" M5 Anti-Tank Gun. The process, demonstrated by an experienced technician, involves methodical removal of components like the pintle, traverse and elevation mechanisms, gun shield, recoil assembly, and finally separating the barrel from the carriage. Proper use of tools, including a forklift for heavy parts, is highlighted.

This guide details the evolution of AR-15 carrier key staking from early 'Gen 1' square staking to modern 'Gen 5' OCKS with serrated heads. It emphasizes proper torque values (vintage 35-40 in-lbs, modern 55-58 in-lbs) and the importance of sufficient metal displacement for screw security. The video, presented by an expert from School of the American Rifle, critiques commercial staking and references historical technical manuals.

This guide details the troubleshooting process for a specific failure in the Ruger American Pistol, where the guide rod and recoil spring assembly malfunctioned. The speaker, an experienced firearms instructor, demonstrates the disassembly and inspection of the firearm to diagnose the issue, which involved the main spring hopping over the guide rod. The video emphasizes that even OEM parts can fail, particularly under extreme conditions like sub-zero temperatures, and outlines options for repair or warranty service.

This video details a complex gunsmithing process to convert a rare Peabody Rifle from its original 11.15 Romanian Beaumont chambering to .45-70 Government using a sleeve from a Swiss Vetterli barrel. The conversion involves extensive machining of the barrel and breech block, fitting a new extractor, and carefully modifying the chamber for reliable feeding. Crucially, the modification is deemed safe only for black powder loads due to significant thinning of the breech block.

This video details the conservation-focused restoration of a severely flood-damaged Mauser K98. Mark Novak emphasizes preserving original finish over aggressive cleaning, using techniques like rust conversion boiling and careful scraping. Key steps include disassembling the rifle, treating rust with boiling and carding, steaming dents from the wood, and repairing the handguard with polyurethane glue.

This video provides a practical, live-fire demonstration of the 1918 Chauchat light machine gun, focusing on its unique long-recoil action. Mark Novak showcases the weapon's cycling in slow-motion, highlighting the reciprocating barrel and bolt assembly. The demonstration emphasizes the historical significance and operational mechanics of this WWI-era firearm.

This video details the conservation of a barn-found LC Smith 20 Gauge shotgun. Mark Novak demonstrates critical steps including barrel solder testing, proper disassembly with fitted tools, and analysis of the stock's inherent weaknesses. The conservation process involves boiling metal parts to convert rust to black oxide and treating the wood with oil, followed by meticulous reassembly and a successful test fire.