AR-15 - How To Install A Muzzle Device

This video from AT3 Tactical explores the function and necessity of the forward assist on AR-15 style firearms. It delves into the component's historical origins, specifically its introduction during the Vietnam War era, and examines its practical applications and potential drawbacks on modern rifles. The content aims to educate viewers, whether they are new to building or modifying AR-15s, to make an informed decision about the forward assist's role in their firearm setup. The video also touches on specific drills and potential problems associated with the component.

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 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 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, presented by an expert firearms instructor, details the benefits and installation of adjustable triggers for platforms like the AR-15. It covers understanding trigger mechanics, adjusting pull weight, reset, and overtravel, and highlights ideal users for these components. The instruction emphasizes safety and practical application for competition and precision shooting.

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 detailed guide on loading a 75-round drum magazine for the AK-47, specifically a Romanian variant. It covers identifying components like the follower and spring tension release, resetting the follower, and the correct procedure for inserting rounds. The tutorial also emphasizes the importance of winding the spring correctly and releasing tension for long-term storage to preserve spring health.

This beginner's guide to the AR-15 covers essential external components, controls, and the basic cycle of operation. It emphasizes proper magazine seating with a firm 'whack' and demonstrates field stripping for cleaning. The video highlights key aftermarket parts from brands like Magpul and Battle Arms Development, offering practical advice for new AR-15 owners.

This video details the critical process of checking headspace on an AR-15 build, emphasizing safety and proper function. It covers the complete disassembly of the bolt carrier group, the precise use of 'Go' and 'No-Go' gauges to verify chamber dimensions, and the reassembly of the BCG. The demonstration highlights the importance of ensuring the bolt does not close on a 'No-Go' gauge to prevent dangerous headspace issues.

This video delves into the critical role of AR-15 buffers in rifle operation, explaining how buffer weight affects cycling and reliability. It details the principle of selecting the heaviest buffer that still allows bolt lock-back on an empty magazine. The content compares various buffer weights and discusses how heavier buffers can compensate for overgassing, preventing extraction issues like ripped casings or double feeds by slowing bolt carrier group velocity.