ARFCOM Presents GUNSTRUCTION

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.

Gun magazines are surprisingly complex despite their low cost. Their design must account for the non-symmetrical geometry of rounds and varying spring pressures to ensure consistent feeding. The market paradoxically demands extreme reliability from these multi-part mechanical devices while expecting them to be very inexpensive, often under $25.

This YouTube video appears to explore modifications or accessories that allow a pistol to be used in a manner or configuration resembling an AR-15 platform. The title suggests a transformation or adaptation of a handgun to incorporate features or functionalities typically associated with AR-15 rifles. The content likely focuses on specific products, custom builds, or conversion kits designed to achieve this hybrid functionality, potentially covering aspects like improved ergonomics, stability, or sighting systems. The video aims to demonstrate how a pistol can be made to feel or perform more like a rifle.

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 video features a former Navy SEAL, Jeff Gonzales, providing expert feedback on a home defense AR-15 build. He critiques the rifle's accessories, particularly the sling, and emphasizes the importance of reliable optics and the benefits of a suppressor for indoor use. The discussion highlights practical considerations for effective home defense firearms.

The Beretta ARX-160, showcased at SHOT Show 2011, is a modular, piston-driven rifle featuring ambidextrous controls and tool-less disassembly. Its design emphasizes adaptability with multiple sling points, interchangeable magazine releases, and a quick-change barrel system. While currently limited to military/defense use, future law enforcement and civilian variants are planned.

Fostech unveiled a 20-round .50 BMG drum magazine for Barrett M107 and 82A1 rifles, constructed from billet machined aluminum. They also introduced the Fostech Rader, a lightweight .308 rifle featuring a proprietary magnesium aluminum alloy and ambidextrous controls. The drum mag is priced at $1599 with a Q3/Q4 availability, while the Rader rifle is expected around $3000 with a Q4 release.

Testing a Remington 158gr SJHP .357 Magnum load from a 16-inch Rossi M92 reveals impressive performance, achieving 1709.6 fps. The round exhibited significant fragmentation and penetration of 20.1 inches in ballistic gel, behaving more like a rifle cartridge due to its velocity. This challenges typical handgun round terminal ballistics expectations.