Tech Tip: Crowning and Chamfering a Muzzle

This guide details the construction of two essential AR-15 configurations: a compact 11.5-inch 'SHTF' build and a versatile 16-inch 'Recce' build, both chambered in 5.56 NATO. The video emphasizes component selection, the importance of barrel length for performance, and the value of chronograph data for verifying ballistics. It also advises new shooters to buy complete rifles while encouraging experienced builders to focus on tolerance stacking for personalized performance. The instruction comes from an expert with high technical proficiency in AR-15 platforms.

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 assembly and testing of a custom 14.5-inch SPR build, featuring a Proof Research carbon fiber barrel and Nightforce optic, as presented by Lucas Botkin. It emphasizes the importance of monitoring barrel deflection and distinguishing equipment performance from environmental factors during competitive shooting events. The build is geared towards advanced users participating in sniper matches.

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 details the advanced process of assembling an AR-15 lower receiver, drawing from expert techniques observed in the video. It covers the installation of critical components like the trigger group, safety selector, and buffer system, emphasizing the use of specialized tools and methodical assembly. The builder demonstrates high-level armorer skills, including custom fitting parts for optimal performance.

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 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.