Inside a Long Stroke Piston AR-15 | The Primary Weapon Systems "Diablo"

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 guide details the cleaning and maintenance procedures for various adjustable gas blocks, including screw-style, JAKL, and Riflespeed models. It emphasizes the importance of regular cleaning to prevent carbon lock and ensure reliable firearm function, especially when using suppressors. The guide provides specific steps for disassembly, cleaning, and reassembly, along with recommended maintenance intervals.

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 video provides a comprehensive, step-by-step guide to building a .300 Blackout AR-15 pistol. Caleb from Brownells walks viewers through the entire process, from selecting top-tier components from manufacturers like Aero Precision and Sons of Liberty Gun Works, to detailed assembly of the lower receiver, upper receiver, gas system, and the installation of accessories such as optics and lights. The guide offers valuable tips on essential techniques like staking castle nuts and setting torque specs, making it an ideal resource for both novice builders and those seeking to learn more about AR-15 customization.

This YouTube video focuses on a common and crucial aspect of firearm ownership: the buffer system. The title, "What buffer system do you use?", directly asks for viewer input on their preferred buffer systems. While the description is empty, the title alone indicates a discussion or inquiry into different buffer systems, which are vital components for the reliable operation of firearms, particularly semi-automatic rifles like the AR-15 platform. Viewers interested in firearm maintenance, customization, or performance optimization would find this content relevant.

This YouTube video focuses on a budget rifle overhaul, suggesting modifications or improvements to an existing firearm without breaking the bank. The content likely involves practical advice, DIY gunsmithing, or part upgrades for rifle owners looking to enhance their firearm's performance or aesthetics on a budget.

This video demonstrates the proper loading technique for the M1 Garand's unique En Bloc clip, emphasizing the step-by-step addition of .30-06 Springfield rounds. It highlights how the clip functions like a magazine's feed lips once partially loaded and concludes with the iconic 'ping' sound upon ejection. The content is educational, showcasing the mechanics of this classic WWII rifle.

This video showcases a Beretta-made FKF M1 Garand chambered in 7.62x51mm NATO, featuring a modification to prevent the 'Garand Thumb' injury. The host demonstrates the rifle's unique safety feature, its semi-automatic firing at steel targets, and the ability to manually trigger the iconic 'ping' sound of the en-bloc clip ejection.

The C96 'Broomhandle' Mauser is an iconic pistol known for its unique wooden holster that doubles as a shoulder stock, making it NFA exempt. It features a 10-round internal magazine fed by stripper clips and fires the 7.63 Mauser cartridge. Select-fire variants exist, and its tangent rear sight is graduated to an impressive 1000 meters.

The GM6 Lynx, nicknamed the 'Handheld Howitzer,' is a bullpup rifle chambered in .50 BMG. Its unique long-recoil operation is demonstrated through mechanical sounds as the barrel extends, bipod deploys, and a 5-round magazine is inserted. The rifle features a compact design for transport, with a visible 'LYNX' logo on its muzzle brake.