This happens at the range all of the time, screws come loose. New thread-locker and proper torque

This guide, presented by School of the American Rifle, details how to identify and replace a malformed weld spring in an AR-15 Delta Ring assembly. A misaligned weld spring can cause the gas tube to be pushed off-center, leading to excessive friction or damage to the carrier key and gas tube. Replacing the faulty component ensures proper gas tube alignment and firearm reliability.

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 content demonstrates the disassembly and reassembly of a Ruger Mini-14, highlighting a critical issue with the trigger group breaking. The speaker, exhibiting experienced firearm handling, shows the broken components and guides through the reassembly process. The video also touches on suppressed shooting and gas management.

This entry details the unique XR-86 custom rifle, a 1986 build by Wilfred Ellis. It masterfully combines components from an M60 (flash hider), an M14 (gas system), and an AR-15 (trigger, bolt, locking system). The AR-15 trigger is notably rotated 90 degrees, and its bolt is integrated with the M14 gas system, showcasing advanced gunsmithing.

This guide details the process of replacing a faulty extractor on a 2011-platform handgun, specifically addressing recurring extraction failures experienced with the Bul Armory SAS II Ultralight. The video demonstrates the installation of an Atlas Gunworks extractor, a common aftermarket upgrade for 2011s, and highlights the importance of proper tensioning for reliable firearm function. The speaker, an experienced firearms instructor, provides practical advice based on extensive troubleshooting and range testing.

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 showcases a novel magnetic optic mount for pistols, demonstrating its quick attachment and detachment capabilities. The speaker tests its retention by racking the slide, highlighting its potential as a firearm innovation. While initially shown on a Glock, the mount is available for other platforms like Sig Sauer and HK.

The EOTECH OGL is a compact, deck-of-cards-sized on-gun laser system featuring co-aligned visible and IR aiming lasers for simplified zeroing. It utilizes advanced VCSEL laser technology and includes a unique sliding lever to adjust the illuminator from spot to flood patterns. This tactical accessory was a notable introduction at SHOT Show 2023.

This video showcases the innovative Full Conceal M1 system for the Sig P320 and a prototype folding Glock 19. The M1 system offers a smartphone-like footprint with 18+1 capacity and a $899 price point. The folding Glock 19 prototype, chambered in 9mm, boasts a 23-round capacity and a unique folding mechanism for enhanced concealability and rapid deployment.

Proper installation and maintenance are crucial for all firearm sighting systems, not just red dots. Witness marks on red dot sights ensure screws remain tight, preserving zero. Even iron sights can fail if not properly secured, highlighting the need for regular checks on both mechanical and electronic optics. This content emphasizes proactive gunsmithing for reliable performance.