The Armorers Toolbox Best Tools for Working on Your AR

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 process of lapping an AR-15 receiver to ensure proper barrel alignment for improved long-range accuracy. Instructor Stephen Caleb from Brownells explains that receiver faces can be slightly out of alignment, leading to barrel runout. The process involves using a specialized lapping fixture and aluminum oxide lapping compound with a drill to create a perfectly flat receiver face. This ensures the barrel seats flush and square, critical for precision shooting beyond 500 yards.

This guide covers essential tools for AR-15 maintenance and range preparedness, as presented by the Palmetto State Armory host. It details a 20-piece cleaning kit, a comprehensive punch set, a bench block for pin work, protective gun mats, and a compact first aid kit. These items are recommended as practical stocking stuffers for gun owners, emphasizing ease of use and field readiness.

This guide from AT3 Tactical provides a simple yet effective hack for correctly aligning an AR-15 gas block. By using the barrel's existing markings as a visual guide, users can ensure proper gas port orientation, preventing cycling issues. The presenter, with high authority in AR-15 assembly, demonstrates how to align the gas tube and block to cover these markings when viewed from above.

This guide explains how to time a flash hider on an AR-style rifle, a crucial step for proper function and aesthetics. The video from AT3 Tactical, featuring insights from BATTLE ARMS DEVELOPMENT, highlights different orientation methods for gas venting. Proper timing ensures optimal performance and can be a point of discussion among firearm enthusiasts.

This guide demonstrates the proper installation of a suppressor onto an AR-style rifle using a direct thread method. It emphasizes a secure fit and highlights the visual steps involved in attaching the suppressor to the barrel. The video, from AT3 Tactical, focuses on ensuring the suppressor is correctly mounted for optimal performance and safety.

This video offers a highly critical, historically grounded analysis of the M14 rifle's shortcomings, attributing its failure to flawed US Ordnance Corps decisions regarding cartridge standardization and weapon design. The speaker, an expert in small arms, details how political motivations and resistance to innovation led to the adoption of an inadequate weapon system, contrasting it with superior alternatives like the AR-10 and FN FAL. The analysis highlights the detrimental impact of these decisions on US military effectiveness, particularly in Vietnam.

This expert-level entry details the M16's troubled introduction in Vietnam, debunking myths of inherent design flaws. It highlights how political decisions, procurement issues, and ammunition choices, rather than the core design by Eugene Stoner, led to early reliability problems. The entry emphasizes the mechanical evolution from the AR-15 to the M16A1 and the critical role of chrome lining, proper maintenance, and correct ammunition in establishing the platform's eventual success.

This guide, drawing on the expertise of a former Colt employee and AR-15 SME Hank Tatro, details the critical role of AR-15/M16 buffers. It explains how buffer design evolved to manage bolt carrier bounce caused by increased firing rates and different ammunition types. The guide emphasizes selecting the correct buffer for specific firearm configurations and warns against improper mixing and matching, particularly for duty applications. It covers standard rifle and carbine buffers, as well as H, H2, H3, and specialized 9mm buffers, providing insights into their construction and application.

This comprehensive review by Chris Bartocci, a recognized expert with extensive military armory experience, debunks common myths surrounding the Beretta M9/92FS. Bartocci details the pistol's history, including its selection over the M1911, and addresses controversies like slide failures, attributing them to ammunition and high usage rather than design flaws. He highlights the evolution of critical components like the locking block and discusses magazine reliability issues, offering practical insights for owners and enthusiasts.