Samostril Netsch: Bizarre Prototype Czech Automatic Rifle

The AK Fm/57 was a Swedish paratrooper prototype rifle developed in the late 1950s, based on the Ljungman AG-42 but modernized with a short-stroke gas piston and folding stock. Despite being chambered in 6.5x55mm, it was designed for the eventual 7.62 NATO transition. It competed in trials against foreign designs like the G3 and FAL but was ultimately unsuccessful, with the G3 being adopted as the AK4.

The H&K XM-8 was a significant contender to replace the M4/M16, featuring a modular design with multiple barrel lengths and an integrated optic with laser/illuminator. Its AR-180 style gas system and polymer construction with a metal trunnion offered a modern approach. The rifle boasted ambidextrous controls and a unique paddle magazine release, showcasing advanced ergonomics for its time.

The EM-2 rifle, chambered in .280 British, is showcased as an advanced prototype rifle ahead of its time. Testing reveals its straight-line recoil path and integrated non-magnified optic with yardage holdover lines. Despite its innovative design, political controversy over cartridge standardization prevented its adoption.

The Hagen Prototype Semiauto Rifle, designed by Hagen and manufactured in the UK, was tested by the French military in 1912. It features a proprietary 7x56.5mm cartridge, a long-stroke gas piston, and a two-lug rotating bolt. Despite good accuracy and trigger, French trials revealed significant reliability issues, including 22 failures to feed and one to eject in 200 rounds, culminating in a broken gas piston.

This review details the T3E2 Garand, a .276 caliber prototype that nearly became the standard US service rifle in 1932. It highlights key differences from the M1 Garand, including a lighter weight, 10-round capacity, and a muzzle gas trap system. The review explains how logistical concerns regarding existing .30-06 ammunition stockpiles, championed by General MacArthur, ultimately prevented its adoption.

The Colt Model 608 was an early AR-15 variant designed as a compact survival rifle for US Air Force pilots. It featured a unique breakdown design for stowage in ejection seats, a shortened grip, and a 10-inch barrel. While only about 10 were made, it represented an early exploration of the AR-15 platform's versatility beyond standard military issue.

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.