From the Vault: Heckler & Koch HK416

This guide details the basic disassembly of the Brownells BRN-4 upper receiver to showcase its HK416-inspired short-stroke gas piston system. The host, demonstrating high technical knowledge, explains how this design enhances reliability by preventing gas and carbon fouling from entering the receiver, a key advantage over traditional AR-15 direct impingement systems. The BRN-4 is presented as a robust alternative for AR-15 platform users seeking improved performance and durability.

This guide details the cleaning of a heavily fouled Daniel Defense AR-15 Bolt Carrier Group (BCG) using the Tactical Elites Gun Cleaning Kit. It covers step-by-step disassembly, effective carbon removal with specialized brushes, and proper reassembly. The instruction comes from an expert demonstrating proficient firearm maintenance skills.

Ian McCollum provides an expert overview of the Sako ARG S 40, Finland's emerging service rifle. The video details its transition from AK-based platforms to the AR-15 standard, highlighting its ambidextrous controls, direct impingement system, and heavy barrel profile. McCollum's assessment emphasizes its reliability and suitability as a modern service weapon, despite a noted front-heavy balance during range testing.

This guide details the field takedown procedure for the Heckler & Koch MR556 A4, emphasizing its tool-less takedown pins for simplified maintenance. The video highlights significant upgrades over the MR556 A1, including an updated gas system and lighter barrel profile. Expert instruction from Tim Harmsen of Military Arms Channel covers the practical application and mechanical improvements of this civilian HK416 variant.

This video demonstrates a quick disassembly of the IWI Masada, focusing on the field stripping process. It covers the removal of the barrel, bolt carrier group, and the separation of the upper and lower receivers, highlighting the ease of access to internal components for cleaning or inspection.

This guide details the installation and benefits of the Maxim Defense One-Piece Carrier for AR-15 platforms. The presenter, demonstrating high expertise, highlights the integral gas key design which removes the need for staking and a common failure point. The carrier also features a specialized slick coating for easier cleaning and improved reliability in Direct Impingement (DI) systems.

This guide details the installation of a Geissele MK8 Super Modular Rail on an AR-15 platform. It covers securing the upper receiver, installing the barrel nut, gas system, and the rail itself, emphasizing the use of specialized tools and proper torque specifications. The process requires an intermediate skill level and careful attention to detail for a secure and functional build.

This guide, based on expert instruction from Brownells, details essential practices for proper ammunition storage. It emphasizes using airtight containers, managing humidity with desiccants, and maintaining stable temperatures to ensure ammunition reliability and safety. Proper storage is crucial for preventing corrosion and propellant degradation, especially for sensitive components like primers.

This guide details the process of upgrading an AR-15 from standard A2 furniture to Magpul components. It covers the removal of the A2 pistol grip and installation of the Magpul MIAD Grip and Magpul PRS Stock. The video demonstrates efficient assembly using specialized tools, highlighting the ergonomic benefits and adjustability of the Magpul parts. Instruction is provided by Brownells, a recognized industry authority.

This entry details the creation of a movie prop suppressor for a Remington 11-87 used in 'No Country for Old Men.' Prop master Larry Zanoff explains how the suppressor was designed to look homemade and was non-functional, with sound effects added in post-production. The process highlights the creative problem-solving involved in film armory.