Barrel Corrosion & Fix

This guide details the process of restoring an AR-15 that has been exposed to fire damage. It covers thorough cleaning to remove corrosion using products like Evapo-Rust, replacement of essential springs, and critical safety checks. The discussion also touches upon the effects of heat on metal temper and the functional tolerance of the AR-15 platform, highlighting that even after severe damage, basic functionality can often be restored with careful attention to component integrity.

This video demonstrates a method for restoring a fire-damaged AR-15 using Evapo-Rust. The process involves soaking the firearm's components in the rust remover, followed by disassembly, thorough cleaning, and gauging. The goal is to test fire the firearm with minimal part replacement, addressing issues as they arise.

This guide details the process of assessing and restoring a fire-damaged Palmetto State Armory AR-15, as demonstrated by Chad Albrecht from the School of the American Rifle. It covers initial assessment, disassembly, rust removal using Evapo-Rust, and inspection of critical components like the buffer spring and trigger group. The expert instructor emphasizes replacing heat-compromised parts and notes potential issues like metal brittleness and cooked-off primers.

This video details the barrel of the Johnson 1941 rifle, highlighting its similarities to the AR-15 barrel extension. The presenter discusses the process of restoring a sporterized Johnson 1941 barrel, including removing unwanted modifications and using Evapo-Rust to address pitting and corrosion. The segment emphasizes the historical connection between Melvin Johnson's designs and Eugene Stoner's AR-15.

This video details the process of disassembling a fire-damaged AR-15 upper receiver, focusing on separating the barrel from the receiver. The instructor demonstrates removing a seized gas tube using specialized tools and techniques, then tackles the challenging removal of a potentially warped or corroded barrel nut. The process involves liberal use of penetrating oil, heat, and percussive force, followed by submersion in a rust-dissolving solution.

This guide details the process of assessing and restoring a fire-damaged Palmetto State Armory PA-15 AR-15. It covers initial cleaning, inspection of critical components like the bolt carrier group and springs, replacement of damaged parts, and methods for addressing barrel corrosion using specialized tools and chemicals. The instruction emphasizes a methodical approach to salvaging the firearm, highlighting the importance of component integrity and proper material treatment.

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.