The U.S. Springfield Model 1903 Bolt is a bolt-action rifle that was the standard infantry rifle for the United States military during the early 20th century. It was officially adopted by the U.S. Army in 1903 and remained in service for several decades. Here are some key features and information about the U.S. Springfield Model 1903 Bolt:

1. Design and Development: The Model 1903 was designed at the Springfield Armory in Springfield, Massachusetts. It was based on the design of the Mauser Model 1898 rifle, with some modifications to suit U.S. military requirements.
2. Caliber: The Model 1903 was chambered for the .30-06 Springfield cartridge, a powerful and versatile cartridge that became the standard ammunition for the U.S. military.
3. Action: It featured a manually operated bolt-action system, where the shooter manually cycles the bolt to chamber and extract cartridges. The bolt handle is located on the right side of the rifle.
4. Magazine Capacity: The Model 1903 had a magazine capacity of 5 rounds. The cartridges were loaded into an internal magazine via a stripper clip.
5. Barrel and Sights: The rifle typically had a 24-inch barrel, although some variants had shorter lengths. It featured an adjustable rear sight and a front sight blade.
6. Safety Mechanism: The Model 1903 had a two-position safety located at the rear of the bolt, which allowed for safe handling and operation of the rifle.
7. Service and Variants: The Model 1903 saw extensive service in both World Wars and other conflicts. It underwent several modifications and improvements over the years, resulting in various sub-models and variants, such as the Model 1903A3.
8. Legacy and Collectability: The Model 1903 is highly regarded for its accuracy, reliability, and robust construction. It is considered an iconic American military rifle and holds historical significance. It is sought after by collectors and firearms enthusiasts.

The U.S. Springfield Model 1903 Bolt played a significant role in U.S. military history and remains a symbol of American military rifle design and craftsmanship. Its effectiveness and reliability contributed to its longevity in service, and it continues to be appreciated by collectors and shooters to this day.