How To Episode 10: Cold Blue

This video details the process of re-bluing a Mossberg 44US-D rifle barrel using Birchwood Casey Perma Blue. The instructor demonstrates removing old paint and bluing with brass wool and vinegar, followed by application of the cold bluing compound and polishing with steel wool. The process highlights potential challenges with previous firearm finishes and variations in cold bluing application techniques.

The video details the process of modifying a rail for a Colt Python revolver to fit a 4-inch barrel. The presenter explains how the original rail was designed for a 6-inch barrel, requiring it to be shortened and refinished in black ceramic coating. The process involved cutting the rail, applying a finish to the bare metal, and adjusting it to match the gun's body length. The presenter also discusses potential future modifications to fill a small recess at the front of the rail.

This guide details the process of customizing an Arsenal SLR-106FR rifle, including a barrel replacement with a Rosco Manufacturing unit, installation of performance-enhancing parts like a KNS adjustable piston and ALG trigger, and a striking gold Cerakote finish applied by MK3 Firearms. The video highlights the expertise of Klay, John (M13 Industries), Matt & Kevin (MK3 Firearms), and Ryan (Cerakote) in executing complex firearm modifications and finishes. It emphasizes the importance of quality components and professional application for a successful custom build.

This video from Brownells provides a practical demonstration of applying different cold blue products to firearms. Steve and Caleb highlight that results can vary based on the metal type and recommend specific products like Oxpho Blue, 44/40, and Dicropan T-4. They emphasize the importance of oiling and neutralizing the finish afterward, and suggest using 0000 steel wool for smoothing.

The decline in gunsmiths is attributed to technological advancements making firearm parts interchangeable and easily replaceable. Modern firearms utilize CNC-machined and MIM parts that fit precisely, eliminating the need for hand-fitting. Furthermore, the shift away from legacy firearms and the DIY nature of modern finishes like Cerakote have reduced the demand for traditional gunsmithing services.

This guide details the process of applying cold blue finishes to firearms, as demonstrated by Steve Ostrem, a technical expert from Brownells. It covers proper cleaning, product selection for full refinishing versus touch-ups, application techniques, and crucial neutralization steps to achieve a lasting finish. Proper surface preparation and understanding metal alloy reactions are emphasized for optimal results.

This video provides an expert-level overview of a heavily customized AR-15, nicknamed the 'Zombie Destroyer', built for a thematic zombie apocalypse scenario. The build features an extensive accessory loadout including multiple optics, lasers, and flashlights, along with a high magazine capacity. The demonstration includes rapid fire, engagement of Tannerite targets, and unique shooting techniques, showcasing the rifle's capabilities and the instructor's proficiency.

This video details an extreme AR-15 meltdown test, pushing a custom build to its limits. Expert instructor Eric demonstrates the process, highlighting component durability and failure points under sustained fire. The test concludes with a catastrophic barrel failure after 830 rounds, providing valuable insights into the platform's resilience.

This guide details the process of conducting an extreme durability test on an AK-47 variant, specifically the Definitive Arms VEPR, as demonstrated by Iraqveteran8888. The test involves sustained full-auto fire to induce critical heat failure, followed by inspection of components like the barrel and gas block. The expert assessment highlights the rifle's resilience, lasting 895 rounds before failure, and compares its performance to other platforms.

This guide details a 700-round rapid-fire stress test on a Yugo M92 PAP AK-47 variant, demonstrating the platform's legendary durability under extreme heat. Performed by Eric from Iraqveteran8888, the test highlights safe handling of overheated firearms and concludes with a tribute to Mikhail Kalashnikov's engineering legacy. The firearm successfully completed the test despite significant heat buildup.