Tech Tip: BRN-9 Upper Disassembly, Maintenance & Reassembly

This YouTube Shorts video showcases a modular Pistol Caliber Carbine (PCC) buildout. The title strongly suggests a focus on customization and assembly of a PCC. The description includes a link to exclusive gear discounts, indicating potential affiliate marketing or product promotion. The '#' shorts tag signifies a short-form video format, likely a quick highlight of the build process or the finished product.

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 title, "I Made A Lighter PCC With This One Trick," suggests a content creator has discovered a method to reduce the weight of a Pistol Caliber Carbine (PCC). The "trick" implies a modification, a specific component, or a technique that results in a lighter firearm. Viewers can expect to learn about innovative ways to customize or improve PCCs for easier handling, potentially for competition, range use, or general shooting enjoyment.

This video showcases an AR-9 build featuring a "Drop In" setup from SuperSafeSolutions, utilizing a 10oz Kak Buffer and a heavy bolt weight. The creator excitedly announces the successful initial test firing, indicating the build is operational with a three-position selector. The focus is on the completion and function of this custom AR-9 variant.

This YouTube video, titled 'Do you still run an old charging handle?', appears to be a discussion or review focused on firearm components, specifically charging handles. Given the title, it likely explores the utility, performance, or perhaps upgrades related to charging handles, potentially comparing older designs with newer ones. The content could delve into functionality, ergonomics, or compatibility with various firearm platforms.

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.

This video details the installation of a Geissele MK8 Super Modular Rail on an AR-15. Key steps include using a Geissele Reaction Rod for upper receiver stability, proper torquing of the proprietary barrel nut, and secure installation of the gas block and tube. The rail is then slid on and secured with two cross-bolts using a T-handle hex wrench. Final steps involve muzzle device installation and a thorough inspection.

Proper ammunition storage is crucial for maintaining reliability and safety. Avoid storing ammo in cardboard boxes in damp environments, as this leads to moisture absorption and corrosion. Utilize airtight containers like ammo cans and control humidity with desiccants like silica gel packs. Heat accelerates gunpowder and primer degradation, so store ammo at stable room temperatures. Reloading primers are particularly vulnerable to moisture and require strict airtight storage.

This video demonstrates how to upgrade an AR-15's A2 furniture to Magpul components. It details the removal of the A2 grip using a Bondhus hex set and the installation of a Magpul MIAD grip with interchangeable backstraps for improved ergonomics. The process also covers preparing and installing the Magpul PRS stock, highlighting its adjustable features for cheek weld and length of pull.

This video explores the custom Remington 11-87 shotgun used as a prop in 'No Country for Old Men.' The film required a semi-automatic shotgun with a suppressor, a combination not readily available at the time. Prop master Larry Zanoff details how a non-functional, 'homemade' looking suppressor was custom-built for the 11-87, with the iconic silenced sound effect achieved entirely in post-production.