The Arsenal of Democracy’s Oversized Training Guns

By Tom Laemlein
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The Arsenal of Democracy’s Oversized Training Guns

June 1st, 2021

5 minute read

Our friends at the Fort Harrison Military Museum in Helena, Montana, contacted us about an interesting discovery they made while searching through one of their storage sheds. Sorting through dust-covered artifacts, our friends at the museum stumbled across a small treasure-trove of unique pieces of American firearms history they put on display: a group of the double-sized training aids representing key U.S. small arms of World War II and the immediate post-war period.

M24 Training Aid rifle
The M24 Training Aid in the hands of a rather large Marine compared with a M1 Garand rifle held by an average-sized Leatherneck. Image: Author’s collection

The museum’s collection includes:

  • The M21: the M2 Carbine training aid
  • The M22: the M1919 Machine Gun training aid
  • The M23: the M1918A2 BAR training aid
  • The M24: the M1 Garand rifle training aid

The big (2X normal size) training aids have become quite rare in the 50+ years since they were released as surplus items. When I was a kid in the late 1960s, many Army/Navy surplus stores and gun shops had them on display, but they are ultimately a bit fragile, and they take up quite a bit of space in a retail operation.

M1 rifle instruction mat
Right-sized training aid: the M1 rifle disassembly mat. Camp Chaffee, Arkansas 1948. Image: NARA

The Fort Harrison Military Museum had the right idea however, and the right environment to display them. Consequently, visitors to the museum get the same fast visual identification of the weapons’ internal operations just like new recruits did during the early 1950s.

Big Idea in Firearms Training

During World War II, the U.S. military needed to train as many men as quickly as they could. In those demanding circumstances, many new training methods were born, and most of those ideas focused on providing information using over-sized graphic presentations. Posters, training films, and film strips were created (and supported by workbooks) for many topics — and particularly for small arms. The concept of the double-size training aids took this idea one step further, providing a tactile, and instantly self-explanatory educational tool.

M23 training aid BAR
The Browning Automatic Rifle compared with the M23 2X training aid. Image: J. Kindrick, Montana Military Museum, Fort Harrison, Montana

The first known of these 2X training aids was the BAR Double Size “Device 3-F-3”. During 1943, the U.S. Army, working with the Naval Research Special Devices Center, created a double-size, non-firing, sectionalized training model of the M1918A2 Browning Automatic Rifle, with the intended purpose:

“For reasons of easier identification by training classes, all vital component parts have been made to the same scale, two times as big as the corresponding parts in the operational weapon.”

The U.S. Navy Training Manual P-1151 describes it like this: “Device 3-F-3 demonstrates the complete cycle of performance of the operational piece. This includes loading and unloading, extraction and ejection of simulated cartridges, action of hammer, trigger, safety, clip latch, change lever and sear, movement of gas piston, and operation of the buffer spring.”

BAR training aids
Giant weapons or tiny riflemen? The M23 (BAR) and M24 (M1 Rifle) 2X training aids on the range at Camp Pendleton, October 1956. Image: NARA

The visible operational features in the sectional training aid were color-treated to look like the real thing. The device is hollow and constructed of a light aluminum, so although massive, it is not heavy. Simulated ammunition, made of plastic, was used to demonstrate how the magazine was loaded. A transportation/storage case was provided, and the plywood top of the case could be removed and used as a display base.

The manufacturer was J.H. Keeney & Company of Chicago, Illinois. Later, the double-size M1918A2 BAR training aid was named the M23, and these were then made by Dellenbarger Machine Company Inc., of New York City in the early post-WWII period.

A Massive M1?

The M24 training aid is an oversized M1 Garand rifle. It is 86″ long, 19¾” high and 17″ wide. It illustrates the inner workings of the M1 rifle, shown “sectionalized” for use in classroom or on the range. A group of 2X plastic cartridges and an en-bloc clip were provided to demonstrate loading of the rifle.

M1 training tool at Parris Island 1952
Marines examine the M24, a 2X training aid for the M1 Garand rifle. Parris Island, 1952. Image: NARA

The Navy handled the original procurement, but the U.S. Army’s Raritan arsenal (Edison, New Jersey) handled the production, with direction from the Training Aids Supply Office (Fort Benning and Fort Jackson) until Raritan closed in 1964. Soon after, the remaining 2X M-series training aids were made surplus.

Where Are They Now?

The big training aids came and went rather quickly. They were lightly constructed, and so consistent problems with damage and a lack of spare parts were encountered during their era. Also, the M1 rifles, M2 Carbines, BARs and Browning M1919 machine guns were being replaced in U.S. service during the late 1950s, so there was less and less need to train our troops on them.

M1 Garand and oversized cutaway
The M1 Garand and the M24 Training Aid compared. Image: J. Kindrick, Montana Military Museum, Fort Harrison, Montana

Most of the examples found today are incomplete, or, at best, refurbished. During the later 1960s, some double-sized training aids were constructed for the M14 rifle and M16 rifles, the M60 machine gun and the Browning M2 .50 caliber machine gun.

Montana Military History Museum

Fort Harrison, now a National Guard installation, is known as the home of the First Special Service Force (1SSF), the “Black Devils” or “Devil’s Brigade” of World War II fame. The fort’s museum contains many rare artifacts and is the ultimate destination for those interested in the U.S./Canadian 1SSF. We appreciate their contributions to this article, and to helping to preserve our military history.

Visit the Montana Military Museum website.

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Springfield Armory® recommends you seek qualified and competent training from a certified instructor prior to handling any firearm and be sure to read your owner’s manual. These articles are considered to be suggestions and not recommendations from Springfield Armory. The views and opinions expressed on this website are those of the authors and do not necessarily reflect the views and opinions of Springfield Armory.

Tom Laemlein

Tom Laemlein

Tom Laemlein is a historian. While that might sound mind-numbingly awful to some, he enjoys it. His deep dives into historical research keep him (mostly) out of trouble and, yet, too often away from the rifle range. Tom is the author of more than 30 books on military history and weapons systems. He regularly contributes articles to national magazines and websites on military history and firearms topics, and historical photos from his collection are used by publishers around the world. In those times that he is cornered in a corporate environment, he will talk about marketing until he is released. Tom is married to a very patient woman, and they live on America’s North Coast, near Lake Ontario. His regular misadventures with Wally, his young Tibetan Mastiff, remind him that life must be enjoyed full-bore, at least until you are ready for a nap.

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