URZ: Czech Prototype Universal Modular Weapon

This guide details the field stripping process for the HK21 light machine gun, as demonstrated by Ian McCollum on Forgotten Weapons. It covers the disassembly of major components, highlights the unique belt feed mechanism driven by the bolt carrier's cam track, and emphasizes the firearm's shared parts commonality with the H&K G3 rifle. The HK21 utilizes a roller-delayed blowback action and fires the 7.62x51mm NATO round.

This guide details the disassembly of the Springfield Armory KUNA, a modern roller-delayed 9mm carbine. Expert insights cover field stripping, examination of the unique single-roller bolt mechanism, and comparison to AR and MP5 internal components. The video demonstrates a practical approach to understanding the firearm's construction.

This guide details the field stripping process for the Zenith ZF-9, a 9mm PCC utilizing a roller-delayed blowback system. It highlights the AR-15 style controls and HK-style ejector, offering a simplified disassembly compared to traditional MP5 variants. The process involves removing receiver pins and separating the bolt carrier group.

This guide details the process of upgrading a Century Arms AP5, incorporating components from Griffin Armament, Midwest Industries, A3 Tactical, B5 Systems, Hoffman Tactical, and Gideon Optics. The video demonstrates a comprehensive modification, from full disassembly to the installation of a new handguard, lower receiver, optics, and suppressor, culminating in live-fire testing. The instruction is presented with high technical proficiency, suitable for intermediate to advanced users.

This guide details the suppressor system of the Ronin Arms 10mm SD, explaining how barrel porting and a large-volume titanium suppressor work together to achieve subsonic velocities and sound reduction. It highlights the technical challenges of suppressing a high-pressure round like 10mm Auto and the design considerations for reliability and performance. The information is presented with high authority, drawing from the weapon's designer and a professional reviewer.

This guide details the field stripping process for an early H&K G3 import, as demonstrated by Ian McCollum. It covers the removal of the stock, trigger group, and bolt carrier, highlighting the push-pin system and similarities to the StG-44 disassembly. The video emphasizes the historical significance of these early imports.

This guide details the specific technique for separating two MAS-36 rifles that have been inadvertently locked together by their bayonets. It outlines the historical context of this issue, the modification made to the bayonet to resolve it, and the step-by-step procedure for disengagement. The technique requires precise alignment and the use of a pointed tool to access the internal release mechanism, as demonstrated by firearms expert Ian McCollum.

This guide details the loading and firing procedure for the M134 Minigun, as explained by Ian McCollum. It covers manual indexing of the barrel cluster, feeding the ammunition belt, engaging controls, and firing. The guide also touches upon the weapon's spin-down inertia and the function of modern clutch systems. Expert instruction from a recognized firearms historian highlights the technical aspects of operating this powerful weapon system.

This guide details the operational features of the H&K G11 K2, a prototype assault rifle known for its caseless ammunition and unique rotating drum bolt. It covers the selector settings, magazine capacity, integrated optics, and the internal action designed for recoil management during high-rate-of-fire bursts. Expert insights from Ian McCollum highlight the historical context and technical innovations of this advanced firearm.

This guide details the operation of the German L.Gr.W.36 50mm light mortar, as demonstrated by expert Ian McCollum. It covers assembly, leveling procedures, ammunition handling, and live fire execution, emphasizing the difficulty in visually tracking the projectile. The instruction highlights the importance of proper setup for accuracy.