Czech M14: The ZK-420S Battle Rifle

This guide details the field stripping process for the FN SCAR 17S, a battle rifle known for its reliability. The video, presented by Administrative Results, a high-level firearms influencer, covers the steps for disassembly, including removing the lower receiver, bolt carrier group, stock, and barrel. It emphasizes the importance of safety checks and highlights the SCAR 17S's short-stroke gas piston system and quick-change barrel feature.

This video provides an in-depth look at the AVS-36, the first Soviet infantry battle rifle, presented by firearms expert Ian McCollum. It covers the rifle's historical context, design lineage, technical specifications, and a detailed field stripping procedure. McCollum highlights the AVS-36's innovative gas system, which influenced later designs, and its place as a precursor to iconic Soviet firearms.

This guide details the disassembly of the Armalite AR-16, a rare 7.62 NATO battle rifle. It highlights key components like the short-stroke gas piston system and stamped sheet metal receiver. The video, presented by Ian McCollum of Forgotten Weapons, offers an expert-level look at this historically significant prototype.

This entry details the analysis of malfunctions in the ZK-420S rifle, as demonstrated by Ian McCollum. It covers short-stroke failures and severe case head separations, emphasizing the need for slow-motion analysis and specialized tools for diagnosis and repair. The content highlights the technical expertise of the presenter in identifying specific failure modes.

This guide details the operation of the Bommarito Toggle-Locked Battle Rifle's unique action. It covers observing the toggle-lock mechanism, understanding the short recoil cycle, and notes common issues encountered during testing. The information is presented with high authority, drawing on detailed mechanical explanations and historical context.

This guide details the field stripping process for the FN SCAR-17S, focusing on its unique short-stroke gas piston system. It covers identifying the BCG, understanding the piston's function, and the role of the adjustable gas block. Proper safety protocols are emphasized throughout.

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.