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Dating the mi garand

A little over 4 million were manufactured before and during World War II, by the federal armory in Springfield, Massachusetts, and by Harrington & Richardson and International Harvester. Among several other nations using it, it was the standard service rifle in Greece until the late 1970s.

During the Korean War, the same manufacturers produced roughly another 1.5 million Garands. And, Haiti's military used the M1 until their national military was disbanded in 1994.

The result is that the parts kit represents a wide range of places and dates of manufacturing. John C Garand worked at the US Army's Springfield Armory and designed a series of closely related rifles through the 1920s and early 1930s.

However, it is possible to figure out when and where Garand parts were manufactured, at least within ranges of time. These were evaluated in trials to replace the M1903 Springfield bolt-action rifle with a self-loading design. In August 1933 the T1E2 was designated the Semi-Automatic Rifle, Caliber .30, M1.

This change from what was a square corner reduced stress. Approximate serial number range: 1,010,001 - 3,300,000 Manufacturing date range: December 1942 through December 1944 Trigger guard is Type 1 (milled).

Specifically Type 1G — no diagram marking, but an inspector's initial stamp . Approximate serial number range: 425,001 - 3,000,000 Manufacturing date range: December 1941 through July 1944 Trigger is Type 2 (no tooling hole). Serial numbers 80,000 to end of production, so any time after October 1940.

When the armory closed in 1968, a small company in Texas used the name for a few years. For example, the exploded view diagram refers to components of the rear sight as being parts of the front sight!

That business was unsuccessful, and then in 1974, the Illinois company was founded. However, the changeover from M1 to M14 in the active-duty component of the U. Army was not completed until 1963, and it was used in the U. Also, the discussion of Figures 8, 9, and 10A (further into the book, the figures in Chapter 1 aren't even numbered) is terribly confusing until you realize that those three figures are misnumbered. Who would publish that type of book without an index?

The gas cylinder is Type 2C (front sight base is 0.840" long and 0.575" wide) manufactured by Springfield Armory (flat top on rear ring).

Serial numbers 1,600,000 through the end of production, so any time after April 1943.

The WWII-era windage knobs used a relatively poor design with a "lock bar".

Each click changes the windage by just less than one minute of arc, or 0.96 inch at 100 yards, or 2.67 cm at 100 meters.

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