Erma EMP: Heinrich Vollmer's Interwar Submachine Gun

This review of the Madsen Model 1945 submachine gun, presented by Ian McCollum of Forgotten Weapons from the Springfield Armory National Historic Site, highlights its unique design and historical context. The firearm is noted for its quality construction, pistol-like reciprocating slide, and use of Suomi magazines. Despite its advanced features for the time, its complexity and cost led to commercial failure, making it an extremely rare collector's item.

Gearhead Guns is producing a Type 100 Nambu PCC recreation, with the first batch shipping around March. It's available in 9mm Parabellum with 9-inch or 16-inch barrel configurations for SBR compliance. Customization options include various metal and wood finishes, with optional bayonet lugs.

The CZ 247 is an experimental Czechoslovakian SMG from the late 1940s, featuring a unique rotating magazine well for versatile shooting positions and an integrated stripper clip guide for rapid reloading. It utilizes a progressive trigger for both semi-automatic and full-automatic fire without a selector switch. Despite its innovative design, it saw limited commercial success and export.

This review delves into the Walther MPK submachine gun, a competitor to the Uzi and MP5. Key features include an open bolt design, a non-reciprocating charging handle with a manual forward assist, and a secondary safety sear catch to prevent accidental discharges. The MPK offered selector options for full-auto and, in some variants, semi-automatic fire.

This review compares the iconic WWII submachine guns, the German MP-40 and Soviet PPSh-41. While the MP-40 offers better ergonomics and a slower, more controllable rate of fire favored by beginners, the PPSh-41 excels in raw firepower with higher velocity and capacity. Both have distinct design philosophies, with the MP-40 prioritizing portability for troops and the PPSh-41 focusing on mass production and effectiveness.

The B&T KH9-SD revives the 1980s Site Spectre design as a modern, integrally suppressed submachine gun. It features a ported barrel system to subsonic standard 9mm rounds, offering exceptional quietness. Despite its direct blowback action, it exhibits manageable recoil and high controllability, enhanced by Swiss engineering. The KH9-SD also boasts modular magazine compatibility, including Suomi drums, and a unique DA/SA trigger, positioning it as a high-end, retro-inspired collector's item.

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.