What happened to this rifle in 1920?

This video provides a practical demonstration of sporterizing a Swiss Karabiner 31 (K31) rifle, a task undertaken by Ziga from Polenar Tactical. The modification involves mounting an optic to enhance the rifle's utility beyond its original military role. The expert-level instruction highlights the K31's straight-pull bolt action and its potential for customization.

This YouTube video, titled "Takedown: Spencer Model 1900", is a short piece intended to fill time while preparing for a new series. The description encourages viewers to support the channel via Patreon and SubscribeStar. No specific details about the firearm's use, caliber, or manufacturer are provided beyond the model name itself. The content appears to be a brief look at a specific firearm.

This guide, presented by GunBlue490, details effective firearm cleaning techniques, emphasizing the purpose of solvents in dissolving fouling and the importance of proper bore conditioning. It advises against dangerous cleaning alternatives and highlights the benefits of a slightly copper-plated bore, especially in modern firearms. The expert, drawing on extensive experience, guides viewers on managing copper and lead fouling, recommending mechanical removal and simple solvents for optimal firearm maintenance.

Ian McCollum and Jonathan Ferguson of the Royal Armouries present a challenge to find three unique firearms based on appearance, mechanical oddity, and historical impact. They showcase experimental and rare pieces like the Charlton Automatic Rifle, Sterling 7.62mm prototype, Schwarzlose Model 1898, Gabbett-Fairfax Mars pistol, an SA80 prototype, and a BSA Machine Carbine, highlighting their unusual mechanisms and limited adoption.

This entry details the Knight's Armament KS-1 (L403A1), the British Army's new Alternative Individual Weapon, adopted under Project Hunter. Expert Jonathan Ferguson from the Royal Armouries provides an in-depth look at its features, intended use for specialized units, and its role in supplementing existing platforms like the SA80.

This guide details the process of arming an 11th-century Norman knight, as explained by an institutional expert from the Royal Armouries. It covers the sequence of donning essential protective gear, including padded undergarments, a mail hauberk, a nasal helmet, and a kite shield, emphasizing weight distribution and historical construction techniques.

This guide details the installation and operation of the Harston's Patent Mark IV magazine, a rare modification designed to convert the single-shot Martini-Henry rifle into a repeater. Expert Jonathan Ferguson explains the mechanism, its inventor Captain Charles Gravelle Harston, and the historical context of its development. The guide covers fitting the magazine, the cycling process for feeding rounds, and the use of the cutoff device for single-shot operation, while also noting potential reliability issues and the high conversion cost.