Prototype Birdshead Grip S&W No.3 Russian

This video details the process of converting a Hatfield SGL 12-gauge shotgun into a Form 1 Short Barreled Shotgun (SBS). Modifications include shortening the barrel to 10 inches, reshaping the stock into a bird's head grip, and adding a custom leather hand strap. The NFA application process and potential delays are also discussed, along with testing with birdshot and mini buckshot shells.

This video details a budget-friendly custom build of a Hatfield 12-gauge shotgun, transforming it into a 'classier' firearm inspired by the Mossberg Shockwave. Key steps include legally modifying the barrel length to avoid NFA regulations, crafting a custom bird's head grip from the original stock, and refinishing the wood with Tru-Oil for a premium look. The project aims for a future Form 1 SBS conversion to a shorter barrel length.

This video details a custom Mossberg 500 build, legally classified as a 'firearm' rather than a short-barreled shotgun (SBS) due to its overall length and lack of a shoulder stock. Key modifications include a Shockwave Technologies Raptor grip and a 14.5-inch barrel, resulting in a maneuverable 5+1 capacity platform. The build highlights the importance of understanding ATF regulations to avoid NFA classification, particularly regarding concealment.

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.