Videos tagged with Nitriding

Mark Serbu, a gun designer, details the complex machining process for the BFG-50A trunnion, a critical component housing the serial number and barrel extension. He discusses challenges with tapping hardened alloy steel, including tap breakage, and the successful implementation of using a larger drill size with molybdenum disulfide grease. The video also covers thread milling techniques for various holes, including the gas cylinder boss, and highlights the importance of precise tolerances for accuracy.

Choosing the correct AR-15 barrel is paramount for accuracy, durability, and reliability. Key factors include defining the rifle's purpose (General Purpose, Long Range, CQB) as this dictates trade-offs in barrel length, profile, material, and gas system. Understanding legal barrel lengths and configurations (SBRs, pistols) is crucial, as is selecting appropriate materials like 4150 Chromoly or 416R Stainless Steel with protective linings such as chrome or Nitriding. Barrel profile impacts heat management and handling, while rifling methods and gas system length affect performance and tuning.

This guide, presented by Mrgunsngear, details AR-15 barrel selection based on material and manufacturing processes. It covers the benefits of 4150 steel (Mil Spec), stainless steel for accuracy, and Cold Hammer Forged (CHF) barrels for durability. Essential quality control (MPI, HPT) and surface treatments like chrome lining and nitriding are also discussed, offering expert recommendations for various shooting applications.

This video details a custom modification of a Smith & Wesson 908 9mm pistol, focusing on a unique nitre blue finish applied to the slide, trigger, hammer, and pins. The aluminum frame was bead blasted for a satin finish, and the grips were stippled. The presenter shares insights into the challenges and results of applying the nitre blue finish at different temperatures.