Experimental Muzzle Cover 1893 Mauser

This entry details the experimental 9x19mm vz.38 'Nutcracker' prototype, a rare firearm with only two examples ever produced. Unlike standard blowback models, this prototype features a locked breech system utilizing a rotating barrel mechanism. The analysis highlights its unique mechanical modifications, including a thickened slide and helical cam grooves on the barrel retainer, allowing for safe operation with the more powerful 9x19mm Parabellum cartridge. The firearm also offers single-action capability, a departure from the standard double-action-only military production guns.

The S.R.E.M. was an experimental British WWII bullpup sniper rifle designed to allow cycling without disturbing the sight picture. It featured a BESA machine gun-inspired mechanism where the pistol grip acted as the charging handle, and was chambered in 8mm Mauser. Despite 22 prototypes being commissioned, only two were completed before the project was canceled in 1945.

The M1E10 Garand-Ljungman prototype aimed to simplify the M1 Garand's gas system by adapting the Swedish AG-42 Ljungman's direct impingement design. Built on a 1943 M1 receiver, it featured a gas block tapping gas into a cup on the operating rod. However, severe overheating issues, charring the wooden stock, led to the project's cancellation.

This video details an experimental Colt revolver designed for airline pilots in the 1970s to combat hijackings. It features a unique disposable Zytel cylinder with steel sleeves and specialized plaster of Paris projectiles designed to disintegrate on impact, mitigating risks of aircraft hull penetration. The design addressed critical safety concerns of the era.

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.

The CZ247 is a rare, late 1940s Czech experimental submachine gun chambered in 9mm Parabellum. It features a unique swivel action for its receiver tube and a progressive trigger allowing for both semi-automatic and full-automatic fire. The design incorporates a simple blowback, open-bolt mechanism with a novel charging handle system.

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.