Tuning the RIFLESPEED Gas Control

Palmetto State Armory announces the PSA Sabre Mixtape Black Album, a new variant of their popular AR-15 platform. This release caters to customer demand for a blacked-out version, featuring enhanced ambidextrous controls, a specific trigger, and a dedicated 300 Blackout suppressor. The video details key components and provides a launch date and time.

This video tests the bullet resistance of a large boulder against various firearms, culminating in a .50 caliber sniper rifle. The experiment demonstrates that even smaller calibers cause minimal damage, with significant chipping and cracking only appearing with higher-powered rifle rounds. It took two .50 caliber rounds to eventually penetrate the boulder, highlighting its substantial protective capabilities.

This video explains the Plan B mount system used by Lantac suppressors, specifically demonstrating its compatibility with the Lantac Dragon 556 muzzle brake. The presenter highlights the modularity of the Plan B mount, allowing users to switch suppressors between different firearms that utilize the same mounting configuration. The internal threading of the muzzle brake and subsequent baffles is shown, emphasizing the standardized interface.

This video features an expert discussion on three specific gripes with the AR-15 platform. The speaker, demonstrating deep knowledge of firearm mechanics and design, critiques the platform's caliber, manufacturing complexity relative to reliability, and the necessity of its buffer assembly. Despite these points, the AR-15 is ultimately lauded as a 'near perfect platform'.

This video tests the ballistic resistance of a 100-pound block of lead against various firearm calibers, from .22LR up to .50 BMG. The experiment demonstrates how different rounds interact with soft lead, showing deformation and penetration depths. Notably, the .50 BMG round successfully penetrated the entire lead block and a target behind it, highlighting the extreme power of this caliber.

This guide details how to adjust the gas system on the HK MR556 A4, a civilian variant of the HK 416. The rifle features an adjustable piston-driven gas system with two primary settings (Normal/Suppressed) and an advanced 15-position fine-tuning capability. Proper adjustment is crucial for optimal performance, especially when using a suppressor, minimizing gas blowback and ensuring reliability.

This video provides an expert-level overview of a heavily customized AR-15, nicknamed the 'Zombie Destroyer', built for a thematic zombie apocalypse scenario. The build features an extensive accessory loadout including multiple optics, lasers, and flashlights, along with a high magazine capacity. The demonstration includes rapid fire, engagement of Tannerite targets, and unique shooting techniques, showcasing the rifle's capabilities and the instructor's proficiency.

This video details an extreme AR-15 meltdown test, pushing a custom build to its limits. Expert instructor Eric demonstrates the process, highlighting component durability and failure points under sustained fire. The test concludes with a catastrophic barrel failure after 830 rounds, providing valuable insights into the platform's resilience.

This guide details the process of conducting an extreme durability test on an AK-47 variant, specifically the Definitive Arms VEPR, as demonstrated by Iraqveteran8888. The test involves sustained full-auto fire to induce critical heat failure, followed by inspection of components like the barrel and gas block. The expert assessment highlights the rifle's resilience, lasting 895 rounds before failure, and compares its performance to other platforms.

This guide details a 700-round rapid-fire stress test on a Yugo M92 PAP AK-47 variant, demonstrating the platform's legendary durability under extreme heat. Performed by Eric from Iraqveteran8888, the test highlights safe handling of overheated firearms and concludes with a tribute to Mikhail Kalashnikov's engineering legacy. The firearm successfully completed the test despite significant heat buildup.