AK 47/74 Firearm Maintenance: Part 4 Reassembly

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 expert guide details the step-by-step cleaning and maintenance procedure for the Ruger Red Label III Over/Under Shotgun, as demonstrated by a Ruger firearms instructor. It covers complete disassembly, thorough cleaning of all components including the bore and choke tubes, proper lubrication techniques, and safe reassembly, emphasizing critical safety precautions throughout.

This expert-level guide details the reassembly of the Ruger Harrier Rifle, presented by a Ruger firearms instructor. It covers the step-by-step process of assembling the bolt carrier group, installing it with the charging handle into the upper receiver, and joining the upper and lower receivers. Crucially, it emphasizes thorough function checks to ensure proper operation and safety after reassembly.

This video provides a detailed breakdown of the SKS rifle, challenging the common perception of it as a 'garbage commie rifle.' The instructor meticulously disassembles the firearm, explaining the function and design of various components, including the unique tilting bolt mechanism, the integrated bolt cover, and the fire control group. The explanation highlights the SKS's surprisingly refined engineering and safety features, offering valuable insights for firearm enthusiasts and designers.

This video demonstrates a timed challenge of field stripping and reassembling an HK VP9 pistol. The presenter successfully completes the task in 29 seconds, highlighting the importance of familiarity with firearm maintenance procedures. It also includes a promotional segment for SDI's online gunsmithing programs.

This guide details the disassembly process for the gas trap variant of the M1 Garand, highlighting its differences from the later, more common models. It involves removing the bolt and operating rod first, then a specific screw to release the gas trap, followed by the sight block, before the gas trap assembly can be rotated off. This early design proved less reliable than the later gas piston system.

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.