Type 99 Arisaka with Nambu LMG Bipod

This entry details the unique XR-86 custom rifle, a 1986 build by Wilfred Ellis. It masterfully combines components from an M60 (flash hider), an M14 (gas system), and an AR-15 (trigger, bolt, locking system). The AR-15 trigger is notably rotated 90 degrees, and its bolt is integrated with the M14 gas system, showcasing advanced gunsmithing.

This video showcases the X-PRT90, a three-position FRT specifically designed for the FN P90 platform. Unlike 3D printed alternatives, the X-PRT90 features robust construction with all-metal components, including stainless steel and aluminum parts. The installation process is aided by an included jig, allowing for integration into the factory P90 trigger group. The speaker emphasizes the durability and quality of the metal construction over plastic alternatives.

This video provides a detailed, step-by-step guide on how to build a Sig P365 X Macro chassis system, incorporating the Radian Afterburner + Ramjet barrel and compensator. The instruction, delivered with clear expertise, covers the disassembly of the original slide, installation of the new barrel assembly, and integration with the chassis and a folding stock. The presenter demonstrates efficient techniques for modular firearm upgrades.

This guide details the installation and operation of the X-PRT90 progressive trigger system for the FN PS90 SBR. The X-PRT90 offers a unique third position that allows for a faster rate of fire by pushing through the trigger pull, effectively creating a legal 'forced reset' malfunction. The video also touches on CMMG barrel modifications and the PS90's unique bottom ejection.

This guide explains how to adjust the trigger weight on a 1911 pistol, specifically addressing a viewer's request to increase a 3lb trigger to 5lbs. The process involves understanding that the 1911's trigger pull is governed by its leaf spring. Adjustments can be made by tuning the existing spring or by replacing it with a pre-tuned spring of the desired weight. The speaker, demonstrating experienced knowledge, emphasizes the importance of proper firearm handling and understanding the mechanism.

This guide, presented by an expert firearms instructor, details the benefits and installation of adjustable triggers for platforms like the AR-15. It covers understanding trigger mechanics, adjusting pull weight, reset, and overtravel, and highlights ideal users for these components. The instruction emphasizes safety and practical application for competition and precision shooting.

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.