Navy M1 Garand Conversions to 7.62mm NATO: Mk2 Mod0 & Mk2 Mod1

This guide details the US Navy's Mk2 Mod1 conversion of the M1 Garand to 7.62mm NATO. It covers the historical context, the failure of early Mk2 Mod0 attempts, the successful Mk2 Mod1 barrel replacement strategy, technical modifications like gas port adjustments and magazine spacers, and identification markings. The rifles saw extensive service from the Vietnam War onwards.

This video details the historical development and technical specifications of the US M1 Garand rifle, focusing on the early 'gas trap' variant. It covers the extensive trials and design iterations that led to its adoption, including the contributions of John Garand and competitors. The video provides a close examination of the gas trap mechanism, its disassembly, and its operational principles, highlighting its strengths and weaknesses compared to later designs.

This guide details the unboxing and initial cleaning of a 72-year-sealed M1D Sniper Rifle, as presented by firearms instructor Hegshot87. It covers inspecting original military packaging, identifying and cleaning desiccant residue, examining key markings like serial numbers and cartouches, and restoring the wooden stock with boiled linseed oil. The process highlights the importance of careful handling and the potential need to replace compromised parts like the operating rod spring.

This entry details new M1 Garand variants and chamberings from the CMP, presented by a representative of the CMP Custom Shop at SHOT Show 2026. It covers the Gas Trap M1, Tanker M1, M1D Sniper Reproduction, A3 Expert Springfield, and a .308 M1 Garand variant, highlighting their unique features, manufacturing processes, and historical accuracy. The information is grounded in technical specifications and historical references.

This entry details the T26 "Tanker" M1 Garand, an experimental prototype developed for jungle warfare. Ian McCollum, a recognized expert, explains its origins, technical modifications including a shorter barrel and relocated gas port, and the reasons for its eventual cancellation. The video clarifies the "Tanker" moniker is a post-war marketing term, distinguishing original prototypes from later commercial "fantasy guns."

This guide outlines the key modifications for the T26 'Tanker' M1 Garand prototype, as presented by Ian McCollum. It details the process of shortening the barrel to 18 inches, incorporating a 1903 Springfield front band, and modifying the stock by removing the metal end cap. The information is presented with high authority, emphasizing historical accuracy and myth-busting regarding the 'Tanker' designation.

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.