Ross Rudd's Prototype Delayed Blowback AR180

This YouTube video showcases a successful disassembly of the Trials Berthier Semiauto Rifle. Based on the title and provided hashtags, the content likely delves into the technical aspects of the firearm, focusing on its internal mechanisms and how to take it apart for maintenance or examination. The mention of 'forgotten weapons' suggests it might highlight a less common or historical firearm.

This video details the 'junkyard prototyping' failures and successes of the AK-50 V2. Key issues included cam groove and lug failures, under-gassed operation requiring port drilling, and magazine disengagement due to recoil. Thermal expansion also caused sluggishness. Redesigned parts with improved geometry and heat treatment are shown for the next iteration.

This video provides a detailed walkthrough of the disassembly and reassembly process for the Brownells BRN-180™ Upper Receiver. Paul Levy, Brownells Director of Product Management, highlights the receiver's unique features, drawing parallels to the original Armalite AR-180. Key innovations discussed include the dual guide-rod system for enhanced reliability and smooth operation, and the easy access to the piston system for cleaning. The video emphasizes the BRN-180™'s compatibility with any mil-spec AR-15 lower receiver.

Brandon Herrera provides a detailed update on the AK-50 project, addressing delays and design evolution from V1 to V4. He highlights significant machining challenges, particularly with complex one-off parts requiring specialized CNC equipment. The V4 design introduces modularity to simplify manufacturing, exploring advanced techniques like DMLS for non-critical components while ensuring critical parts like the bolt and barrel extension are CNC machined from billet steel. A functional V4 prototype is targeted for early December.

This video showcases DSA's unique Titanium FAL project, resulting in a 7.5 lb rifle. DSA produced 12 upper receivers from billet titanium, along with other lightweight components. The featured rifle, serial number 8, uses a titanium flash hider and aluminum lower, with a fixed stock for weight savings. Range testing indicates increased felt recoil but manageable handling.

This video delves into an experimental conversion of the AG-42B rifle to fire 7.62mm NATO ammunition. It explores the historical context of this modification, likely for interoperability with NATO standard cartridges. The content focuses on the AG-42B and its transformation, appealing to enthusiasts of historical firearms, military arms, and unique gunsmithing projects.

This video details the unique 'French Finger Trap' issue with the MAS-36 rifle's bayonet, where two rifles can become unintentionally locked together. A 1951 French arsenal memorandum identified this problem, proposing a simple modification to the bayonet handle. Drilling a small hole allows a tool, like a firing pin, to depress the internal spring, enabling the separation of locked rifles.

The M134 Minigun is a scaled-down 7.62 NATO rotary cannon, requiring 24V DC power and consuming 1.5 kW. Its high rate of fire (3,000+ RPM) is essential for aircraft engagement windows. The complex delinker mechanism is critical for feeding ammunition, and practical hand-held use is impossible due to weight and recoil. Live fire demonstrates rapid ammunition consumption and the need for indirect aiming.

The H&K G11 is a revolutionary prototype assault rifle designed in the late 20th century, notable for its caseless ammunition and unique rotating drum bolt mechanism. Despite advanced features like a 2000 RPM burst fire rate and integrated optics, its development was ultimately halted by geopolitical shifts and cost concerns.

This video demonstrates the assembly and live-fire of the German 1936 pattern light mortar (L.Gr.W.36). It highlights the mortar's leveling mechanism for accuracy and the difficulty in visually tracking its 50mm projectiles after firing. The content showcases historical military hardware and its operational use.