Smyth Busters: AR-15 Bolt / Carrier Lubrication

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, based on expert instruction, details 17 habits to ensure firearms like Glocks and AR-15s last over 20,000 rounds. It emphasizes proactive maintenance, including meticulous round count logging, regular cleaning and lubrication, timely replacement of critical springs and components, and thorough visual inspections. Following these practices prevents malfunctions and extends the operational life of your firearm.

This guide details the process of replacing the buffer and spring assembly in an AR-15 platform rifle. It covers disassembly, removal of the old components, installation of new parts like the Kynshot RB5000 hydraulic buffer or the Geissele Super 42 system, and reassembly with a function check. The video emphasizes proper technique and the benefits of upgraded components for recoil management and reliability.

This guide details the installation of Law Tactical's Gen S Folding Stock Adapter, an evolution of the Gen 3-M. The process emphasizes proper alignment using specialized tools like the Law Alignment Tool and Armorer's Flange Tool to ensure optimal function on AR-15 and AR-10 platforms. The new adapter is noted for its lighter weight and improved corrosion resistance due to its 17-4 stainless steel construction.

This guide details the operation of Geissele Automatics' innovative ambidextrous lower receiver, as demonstrated by Brandon Smith at SHOT Show. The key feature is the dust cover's integration as a bolt lock mechanism, allowing the bolt to be held open by pressing the rear of the dust cover. The right-side bolt release is also highlighted for its accessibility. This innovation aims to enhance manipulation ease for shooters.

This guide details the cleaning process for the VKTR VK1's Bolt Carrier Group (BCG), emphasizing the unique patented cam path. The video highlights the BCG's thin dense chrome finish and its role in reliability. Proper maintenance ensures the longevity and performance of this piston-driven AR.

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.