Converting the Lebel to 7.5mm: The M27 Lebel

This video provides an expert-level guide to the Berthier M34 rifle, detailing its conversion to the 7.5mm rimless cartridge. It covers the historical context, technical specifications, production details, and a demonstration of field stripping. The presenter, Ian McCollum, showcases the rifle's unique features and markings, offering deep insights into French small arms development.

This guide details a critical safety modification for the MAS 49/56 rifle, specifically addressing the risk of slam-fires when using commercial ammunition. It emphasizes replacing the original heavy firing pin with a modern, lighter, or spring-loaded alternative. The video highlights that French military surplus rifles, like the MAS 49/56 and MAS 36/51, are often imported in refurbished condition and require specific attention to safety protocols, especially concerning ammunition compatibility.

This guide details the field stripping process for the Darne Model 1933 infantry machine gun, as demonstrated by Ian McCollum. It covers the removal of major components like the bipod, receiver, and bolt carrier group, highlighting the firearm's modularity and economic design. Proper safety precautions are emphasized throughout.

This guide details the field stripping process for the French AA-52 machine gun, as demonstrated by Ian McCollum. It covers removing the pistol grip, stock, recoil spring, and bolt/carrier assembly. The video highlights the AA-52's development context and its lever-delayed blowback mechanism, emphasizing its historical significance and mechanical simplicity.

This guide details the field stripping process for the Châtellerault M24/29 light machine gun, as demonstrated by Ian McCollum. It covers the simple removal of the buttstock, trigger group, and the bolt/gas piston assembly. The video highlights the weapon's design evolution and historical context following WWI.

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.