Well how did it look after tear down?

This guide emphasizes a methodical approach to firearm upgrades, recommending the installation of one to two parts at a time. This phased method allows for easier diagnosis of potential malfunctions, preventing the common issue of multiple simultaneous upgrades making troubleshooting nearly impossible. The instructor shares personal experience and examples to illustrate the importance of testing each modification individually at the range before proceeding.

This expert guide from the School of the American Rifle details how to identify and address rough carrier key bores in AR-15 bolt carrier groups. The instructor, demonstrating expert knowledge, explains how these manufacturing defects, particularly on Colt components, can lead to premature wear on the gas tube and reduced reliability. Solutions involve replacing the defective carrier key to ensure smooth operation and longevity of the firearm.

This guide details the field stripping process for Glock Gen 6 G19 and G45 models using the Tactical Elites magnetic cleaning mat. It covers essential safety checks, disassembly steps, and reassembly, emphasizing the utility of the magnetic mat for organizing small parts during cleaning and maintenance.

This guide addresses common feeding and hammer drop issues encountered with a Beretta 92 .22LR conversion kit. It outlines steps for inspection, potential break-in periods, ammunition testing, and checking critical internal components. The speaker, a hobbyist, suggests these troubleshooting steps are necessary when the kit experiences malfunctions.

This guide addresses common issues encountered when mounting optics on firearms, specifically focusing on problems like loose screws and broken mounting posts as seen with the Phoenix Trinity Lo Pro. It outlines steps for inspection and correction to ensure a secure optic installation.

This guide details the disassembly process for the gas trap variant of the M1 Garand, highlighting its differences from the later, more common models. It involves removing the bolt and operating rod first, then a specific screw to release the gas trap, followed by the sight block, before the gas trap assembly can be rotated off. This early design proved less reliable than the later gas piston system.

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.

This guide covers the basic operation and features of the EOTECH OGL, a compact laser aiming device. It highlights the interface controls, including the activation button and the illuminator adjustment lever, and explains the benefit of co-aligned visible and IR lasers for simplified zeroing. The use of VCSEL technology is also noted.

This entry details the innovative Full Conceal M1 system for the Sig P320 and a prototype Folding Glock 19, both designed for enhanced concealability. The M1 system, priced at $899, integrates an 18+1 capacity with a smartphone-like footprint and active retention. The Folding Glock 19 prototype showcases a unique mechanism for rapid deployment from a compact state, utilizing a 23-round 9mm magazine. Expert insights from Chris Tran (Guns & Tactics Magazine) and Mike (Full Conceal) highlight the technical aspects and practical applications of these designs.

This guide, drawing on expert instruction from UN12 Magazine, details the critical steps for properly installing and maintaining firearm sights. It emphasizes the use of witness marks on red dot sights to ensure screw security and highlights the importance of checking iron sights for mechanical integrity to prevent zero loss. Proper installation and regular checks are vital for all sighting systems.