BCM MK2 Recoil Mitigation System Review. How To Install AR Buffer Tube, Buffer, & Spring/Retainer.

This YouTube video focuses on a common and crucial aspect of firearm ownership: the buffer system. The title, "What buffer system do you use?", directly asks for viewer input on their preferred buffer systems. While the description is empty, the title alone indicates a discussion or inquiry into different buffer systems, which are vital components for the reliable operation of firearms, particularly semi-automatic rifles like the AR-15 platform. Viewers interested in firearm maintenance, customization, or performance optimization would find this content relevant.

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.

This YouTube video offers practical tips and techniques for polishing stainless steel firearm components. The content focuses on achieving a high-quality finish on gun parts, likely aimed at gunsmiths, hobbyists, and firearm enthusiasts looking to customize or maintain their weapons. The video emphasizes real-world application and likely demonstrates various methods and tools used in the polishing process for stainless steel firearms.

Fighting rifles are often intentionally overgassed for reliability but can become problematic when suppressed due to increased back pressure. This leads to excessive gas blowback, making the rifle uncomfortable and potentially damaging components. A cost-effective solution is upgrading to a heavier buffer spring, such as a Sprinco Red or Red/White, to better manage bolt velocity and mitigate these issues.

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 guide details the installation of an AR-15 buffer tube using the LAW Tactical LAT and Geissele Reaction Block. The process ensures proper alignment of the receiver extension with the lower receiver before torquing the castle nut to 38-42 foot-pounds. This method is recommended for users who already own a Geissele Reaction Block to prevent misalignment issues.

This video provides a detailed guide on installing a Trijicon RCR red dot sight onto a Glock 17, specifically addressing MOS slides. It emphasizes safety checks, proper disassembly, and the correct use of adapter plates and torque specifications (13 inch-pounds) for secure mounting. The guide also covers reassembly and a final visual check of the optic.

This guide details the installation of a Leupold Delta Point Pro red dot sight on a Glock 17 MOS. It emphasizes proper disassembly, using specific adapter plates like Forward Controls, and applying thread locker with precise torque values (13 inch-lbs for the plate, 25 inch-lbs for the optic). The process also includes installing a rear iron sight for co-witnessing capabilities.

This video provides a detailed, step-by-step guide on assembling the BCM buffer system for an AR-15. It covers the correct installation of the buffer tube, retainer spring and pin, end plate, castle nut, buffer spring, and buffer itself. Key steps include ensuring the buffer tube is threaded correctly to retain the pin without binding and properly aligning the end plate to capture the rear takedown pin spring.

This video demonstrates the ghost loading technique for the Beretta 1301 Tactical (Mod 1 & 2) to achieve a 9-round capacity (1+1+7). It details the process of loading the magazine tube, manipulating the bolt release, and carefully placing an extra round onto the lifter, especially with the Pro Lifter accessory. The technique allows for a faster follow-up shot by having a round already positioned for chambering.