Stop Buying New Guns! Make Your AR 15 Shoot 4 Calibers

This video explores seven affordable upgrades for the AR-15 platform that are effective and worth the investment. It covers a range of accessories and modifications, including slings, triggers, charging handles, rail covers, foregrips, hand stops, grip tape, and even custom paint jobs. The content aims to provide practical advice for AR-15 owners looking to enhance their firearm's functionality and aesthetics without breaking the bank, catering to both new and experienced builders seeking to improve their rifle.

This video addresses a common issue encountered when using .22 Conversion kits with AR-15 platforms, where manufacturing variances can cause compatibility problems. The "Quarter Trick" is presented as a simple and inexpensive solution to rectify these issues. The video encourages viewers to become CMMG Insiders for updates on new releases and provides links to CMMG's website, Instagram, and Twitter for more information and engagement.

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 details how to repurpose a worn AR-15 receiver set into a dedicated .22 LR build, a project undertaken by Hop due to excessive assembly and disassembly. The video highlights the advantages of dedicated .22 LR barrels over conversion kits and showcases specific components like a CMMG barrel and bolt kit, a Ballistic Advantage rail, and a Catch22 bolt catch for enhanced functionality. It also touches on suppressor performance differences for rimfire applications.

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 video from School of the American Rifle highlights critical manufacturing defects in AR-15 bolt carrier keys, specifically focusing on rough internal bores. Lead instructor demonstrates how a poorly finished carrier key can cause significant friction, premature wear on components like gas tubes, and operational issues, contrasting a problematic new Colt carrier with a well-functioning older model. The expert emphasizes the importance of a smooth bore for reliable function and longevity of expensive parts.

Avoid common pitfalls when building an AR-15 by planning your rifle's purpose and budget first. Prioritize quality for critical components like barrels and BCGs, and avoid overspending on standard lower receivers. Use proper tools and techniques for barrel installation to ensure accuracy and longevity. Focus on functionality over aesthetics, and be aware of potential issues like receiver slop.

Choosing your first handgun involves defining its purpose (carry, defense, range), understanding gun types (striker vs. hammer-fired), and considering size categories from subcompact to full-size. 9mm is recommended for its balance of capacity and recoil. Proper ergonomics, including trigger finger reach and control manipulation, are crucial. Testing firearms at a range before purchase is highly advised, with models like the Glock 19, CZ P-10 C, and S&W M&P 2.0 Compact being top recommendations for new owners.

This video provides a comprehensive guide to essential AR-15 upgrades under $100, focusing on improving reliability, ergonomics, and performance. Key recommendations include indexing the cam pin, upgrading to better bolts or extractor kits, installing drop-in triggers, and enhancing grip and stock options from brands like B5 Systems and Magpul. The host also covers foregrips, ambi controls, muzzle devices, and essential maintenance items like White Lithium Grease.

The CMMG MK57 in 5.7x28mm offers impressive performance with low recoil and minimal muzzle rise due to its Radial Delayed Blowback system. While technically superior to many AR pistols, the high cost and limited availability of 5.7x28mm ammunition make it an impractical choice for most consumers. The review highlights build components, range testing, and a detailed look at the unique operating system.