As of early 2026, the market for High Standard HD pistols shows steady, modest appreciation.
The "best" pistols are distinguished by their serial numbers. Unlike modern firearms, the Hi-Standard HD Military did not use a simple sequential count. The prefix and the number range tell you everything: the exact variant, the production year, and whether the gun retains its original military configuration.
: Widely considered the "gold standard" for serial number research based on original factory records. Book Resource High Standard Firearms History 1932 to 1984 Connecticut by John G. Curry is the most authoritative print guide. Key Specifications .22 Long Rifle (LR) Straight blowback, single-action with external hammer Barrel Lengths 4.5 inches or 6.75 inches (heavy target style) 10-round detachable box with heel release Adjustable rear for windage and elevation Collector's Perspective High Standard Model H-D Military
Like all .22 LR semi‑automatics, the HD Military can be finicky with dirty or wax‑lubed ammunition. A light cleaning after every 200–300 rounds will ensure reliable functioning. histandard model hd military serial numbers best
– The original cardboard box, instruction card, and extra magazines can add $100–$200 to the value.
The High Standard Manufacturing Company of New Haven, Connecticut, produced the Model HD Military from 1948 to 1950 (despite common misconception, most WWII training used the earlier H-D model). The "HD Military" is distinguished by its 6.75-inch barrel, "ears" on the rear sight, and a Parkerized finish. Serial numbers are the primary key to dating these pistols.
⚠️ : Hi-Standard did not ship guns in strict serial number order. It was common for them to sit on a shelf for years before being shipped, so the "shipped" date on factory records could be later than the actual date of manufacture. A chart, therefore, is only accurate to within a year or two. As of early 2026, the market for High
if you provide the first few digits of your serial number.
Note: The integral suppressor makes them legally classified as NFA (National Firearms Act) items in the United States, requiring a $200 tax stamp.
High Standard produced more than 200,000 pistols within the broader H-D family between 1940 and 1955. To find the best, most valuable collector variants, you must look at the specific frame markings alongside the serial blocks: The prefix and the number range tell you
This article explains how military-style serial numbers are used on firearms such as Hi-Standards (often called Hi-Standard pistols) and similar models, clarifies legal and historical contexts, and outlines best practices for recordkeeping, compliance, and identification. It assumes the pistol model in question is a Hi-Standard Model "HD" or comparable Hi-Standard series (made by Hi-Standard Manufacturing Co., USA). If you meant a different “HiStandard” product, or a specific country’s military system, say so.
The "Military" in the post-war name refers to the style (aimed at target shooters) rather than active combat service. 🔍 Identifying the "Best" Models
High Standard experts recommend measuring the spring’s free length against a new spring as a better guide than a simple round count.
The High Standard Model HD Military is more than just a plinker; it is a piece of American history. By checking the serial number, verifying the "USA" or "Military" marking, and looking for U.S. Property stamps, you can identify the best, most authentic, and most valuable models, including the storied WW2-era examples.