How to Choose the best AR15 Buffer Weight

This guide addresses the common issue of gas blowback experienced when shooting suppressed AR-15 platforms, particularly the MK18. It details solutions ranging from personal protective equipment like Magnalens to mechanical adjustments such as installing an adjustable gas block or a PRI Gas Buster charging handle. The speaker, identified as FrenchGunGuy, emphasizes that these modifications not only improve shooter comfort by reducing gas in the face but also help correct over-gassed ejection patterns. For those interested in learning more about rifle tuning and gunsmithing, the Sonoran Desert Institute (SDI) is recommended.

This video showcases a custom Short Barreled Rifle (SBR) build, featuring a Daniel Defense upper receiver acquired as a contract overrun for $600. The creator highlights this build as one of their favorites and invites viewer suggestions for improvements. The focus is on the modification and creation of a unique firearm, emphasizing the cost-effectiveness of the core component.

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 guide details the installation of an aftermarket AR-15 trigger, specifically a Timney Triggers product. The process involves unboxing the trigger, identifying its modular components like interchangeable shoes, and then carefully installing it into a lower receiver. A function test is crucial to confirm correct operation. The speaker demonstrates proficiency with firearm components and installation procedures.

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.

This video showcases a novel magnetic optic mount for pistols, demonstrating its quick attachment and detachment capabilities. The speaker tests its retention by racking the slide, highlighting its potential as a firearm innovation. While initially shown on a Glock, the mount is available for other platforms like Sig Sauer and HK.

The EOTECH OGL is a compact, deck-of-cards-sized on-gun laser system featuring co-aligned visible and IR aiming lasers for simplified zeroing. It utilizes advanced VCSEL laser technology and includes a unique sliding lever to adjust the illuminator from spot to flood patterns. This tactical accessory was a notable introduction at SHOT Show 2023.

This video showcases the innovative Full Conceal M1 system for the Sig P320 and a prototype folding Glock 19. The M1 system offers a smartphone-like footprint with 18+1 capacity and a $899 price point. The folding Glock 19 prototype, chambered in 9mm, boasts a 23-round capacity and a unique folding mechanism for enhanced concealability and rapid deployment.

Proper installation and maintenance are crucial for all firearm sighting systems, not just red dots. Witness marks on red dot sights ensure screws remain tight, preserving zero. Even iron sights can fail if not properly secured, highlighting the need for regular checks on both mechanical and electronic optics. This content emphasizes proactive gunsmithing for reliable performance.