Videos tagged with Gas-impingement

This video introduces the new Rock River Arms .17 HMR rifle for 2024. It's RRA's first AR-style rifle in this caliber, designed to address the challenges of creating reliable semi-automatic .17 HMR firearms. The rifle utilizes a gas-impingement, delayed-blowback system and features RRA's two-stage NM Ultra Match trigger, Magpul furniture, and a 15" M-Lok handguard. A 10-round magazine is included. The video promises a range demonstration of the rifle in action.

This video delves into a nuanced discussion about the AR-15's operating system, challenging the common classification of it as purely 'Direct Impingement.' The creator argues that it can also be considered an 'internal piston' system, sometimes referred to as 'gas impingement internal piston.' The video touches upon comparisons with external piston systems like those found in the AK-74 and features a teardown of the AR-15. It also includes promotional content for War Thunder and sponsors like MidwayUSA and Slate Black Industries, along with calls to action for supporting the channel via Patreon and Utreon.

This beginner's guide to the AR-15 explains its basic components and operation. It clarifies that 'AR' stands for Armalite Rifle and details the common carbine configuration with a 16-inch barrel and collapsible stock. The video covers the gas impingement system, external controls like the bolt catch and safety lever, and the process of field stripping into upper and lower receivers. Essential internal parts like the bolt carrier group and buffer system are also highlighted, emphasizing the platform's modularity and basic maintenance.

This video provides a detailed analysis of the Egyptian Hakim service rifle, a licensed production of the Swedish Ljungman AG-42. It highlights key modifications made by Egypt, including changes to grasping grooves, a removable muzzle brake, an adjustable gas system, and the absence of a cleaning rod. The description debunks the common assertion of the Hakim's widespread use in the 1956 Suez Crisis, suggesting limited production numbers at the time and a greater reliance on Soviet SKS and Czech Vz.52 rifles. The video also touches upon the Hakim's presence in Yemen and Iraq, and its availability on the US surplus market. Production overlap with the Rasheed carbine is noted, with an estimated total manufacture between 70,000-80,000 units.

This video debunks the 'direct impingement' myth for AR systems, explaining they use an internal gas piston within the bolt carrier. It details how gas travels via a tube and key, acting on the carrier and bolt head to cycle the action. The explanation covers bolt unlocking, gas venting, and how bolt carrier mass regulates cycling speed, while also addressing fouling concerns.

This YouTube Q&A video from Forgotten Weapons covers a wide array of firearms-related topics. It delves into technical aspects like gain twist rifling and compares the 6.5mm Arisaka to modern cartridges. The discussion also touches upon historical firearm decisions, such as the US abandonment of the M1917 Enfield, and explores future acquisition interests. The video addresses the mechanics of Stoner's gas impingement system, potential BAR modernization, and the reasons behind military firearms surplus and its dealers. Additionally, it provides guidance on identifying collectible firearms, discusses the decline of rimmed and rimfire cartridges, and examines modern firearm technologies like binary triggers and rotating barrel pistols. French arms reputation and the potential US availability of the L85A2 are also explored, with a brief mention of on-location battlefield footage.

The MGI Hydra is a highly modular rifle built on the AR-15 platform, allowing for tool-less caliber swaps. It demonstrated conversions to 9mm and 7.62x39mm by swapping barrels and magwells. The system retains standard AR-15 controls, enhancing user familiarity and muscle memory across different calibers. Its design concept dates back to the Vietnam War, aiming to utilize enemy ammunition.