Borchardt C-93

Hugo Borchardt's 1893 toggle-locked pistol, the first commercially made self-loader and the parent of the Luger: its makers and trials, the mechanism from the factory's own manuals and the 1896 US Navy description, identification, the factory takedown, the cartridge question, the market and the law, and a from-scratch build path.

Firearms

Borchardt C-93 · Deep Dive

Borchardt C-93

In Michigan an original 1895 C-93 may not be an antique at all: the state copied the NFA's narrower definition, and the 7.63 Mauser round that still chambers in it keeps the pistol out.

Hugo Borchardt's 1893 toggle-locked pistol, the first commercially made self-loader and the parent of the Luger: its makers and trials, the mechanism from the factory's own manuals and the 1896 US Navy description, identification, the factory takedown, the cartridge question, the market and the law, and a from-scratch build path.

Photo: Borchardt C93 2119 L DSC1060 by Self Loader · CC BY 4.0

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    Volumes

    1. Vol 1 Hugo Borchardt: Magdeburg, Bridgeport, Budapest, Berlin The man behind the first commercially made self-loading pistol, from the American gun shops of the 1870s to a Berlin machine works in 1893, with every contested date shown as contested
    2. Vol 2 Patents, Loewe and DWM: Making and Selling the C-93 A patent family filed in ten countries in six weeks, the first published descriptions, two makers, about three thousand pistols, and the unanswered question of when the last one was made
    3. Vol 3 Trials, Rejection and the Road to the Luger The US Navy in 1894, the Swiss commission in 1897, the US Army in 1897 and 1898, why every one said no, and how Georg Luger turned the C-93 into the Parabellum
    4. Vol 4 How It Works: The Toggle, the Rollers and the Double Closing Spring The full cycle of operation part by part, from the patent, the 1896 US Navy description and the factory's own manuals, with the part numbers the factory used
    5. Vol 5 Variants, Markings, Stocks and Cased Sets: Identifying a C-93 Loewe against DWM, where the serial numbers are, the running changes the factory documented, the stock and holster, what a complete outfit contained, and what has been restored or reproduced
    6. Vol 6 Field Strip, Detail Strip, Care and Repair The factory's own takedown, quoted word for word from the Loewe and DWM manuals with their hand-position plate, then what the period sources and the collector record say about cleaning, wear, breakage and parts
    7. Vol 7 The Cartridge, Ammunition Today, and How It Shoots What the factory said its round was, the 7.63 Mauser interchange argument with both sides quoted, what can be bought in October 2026, and every accuracy and recoil report that could be found
    8. Vol 8 Owning One: The Market, the Prices and the Law Two dozen dated auction results with their terms, what drives value, the federal antique and NFA position quoted from the statutes and ATF's list, and a Michigan definition that is stricter than the federal one
    9. Vol 9 Making One: Reproductions, the Law of a New Antique Design, and a From-Scratch Lab Build What exists and does not, why a newly made C-93 is a modern firearm, and a machinist-level path for an antique-pattern pistol built in a lab with CNC mills, 3D printers, a laser and a full gunsmithing bench