Videos tagged with Overgassing

This review of the Rifle Supply RS15 highlights significant concerns regarding its accuracy and reliability, particularly as the firearm heats up. Despite a visually appealing Cerakote finish, the rifle experienced frequent malfunctions, including stove piping and failures to extract, after a relatively low round count. Accuracy degraded substantially with barrel warmth, making consistent hits at distance impossible.

This video details the process of diagnosing and rectifying severe overgassing issues in a 14.5-inch AR-15, specifically the Griffin Armament MK2. The presenter, drawing on experience from building numerous rifles, identifies an oversized gas port as the primary culprit after experiencing ejection problems, cycling failures, and accelerated wear. The guide includes using pin gauges to measure the gas port and recommends replacing the barrel if the port is found to be too large, emphasizing the importance of correct gas system tuning for optimal rifle performance.

This guide details how to tune an AR-15 suppressed rifle that is experiencing overgassing or excessive recoil. It emphasizes using a combination of heavier buffer weights, enhanced buffer springs, and adjustable gas systems (either an adjustable gas block or an adjustable BCG) to mitigate high back pressure. The process involves incremental adjustments and testing to achieve reliable cycling, manageable recoil, and reduced gas blowback, ultimately making the suppressed shooting experience much more pleasant.

This guide details a method for testing the Meridian Defense AK Trigger's performance under challenging conditions. Expert Klayco47 demonstrates how to intentionally overgas an AK-47/AK-74 variant using a KNS Adjustable Gas Piston and a Dead Air Sandman Suppressor. The process involves adjusting the gas system to its most restrictive setting and then executing rapid fire strings to measure trigger speed and reliability. The results, captured by a shot timer, show impressive split times, highlighting the trigger's potential for high-speed shooting.

This video explains the concept of 'dwell time' in direct impingement (DI) AR-style rifles. Dwell time is defined as the duration from when a bullet passes the gas port until it exits the barrel. This duration significantly influences the amount of gas pressure built up, which in turn affects the gas port size and the overall operation of the rifle. Understanding dwell time is crucial for tuning a rifle, especially when using suppressors, which can increase back pressure and lead to overgassing.

This review of the Palmetto State Armory Sabre series, specifically the 10.5-inch model, highlights its premium components like FN barrels and Radian charging handles. However, the analysis by Brass Facts reveals significant overgassing issues when suppressed, leading to malfunctions. The reviewer suggests the rifle offers good value in parts but is not an ideal suppressor host in its current configuration.

This guide details effective recoil management techniques for the AK47 platform, as demonstrated by Rob Ski of AK Operators Union. It covers understanding recoil physics, optimizing body and stock positioning, utilizing accessories like recoil pads, and adjusting grip for better control. The instruction emphasizes that personalized experimentation is key to mastering recoil for smoother and more accurate shooting.

This entry synthesizes expert analysis from Brandon Herrera regarding Inter Ordnance (I.O.) AK-style rifles. It details manufacturing observations, range testing results, and critical technical flaws identified, such as cast trunnions and improper riveting. The analysis also covers recent improvements and potential future quality control enhancements under new leadership.

This guide, drawing from an expert assessment by nsz85, details the critical role of AR-15 buffers in rifle function. It covers buffer weight selection based on the principle of using the heaviest buffer that ensures bolt lock-back on an empty magazine. Key concepts like dwell time, overgassing, and their impact on extraction are explained, along with the mechanical differences between standard rattling buffers and those using tungsten powder.