The Springfield Model 1840 was a flintlock musket manufactured by the United States during the mid-19th century.

More than 30,000 were produced by the Springfield and Harpers Ferry armories and two independent contractors between 1840 and 1846 (D. Nippes and L.

The Model 1840 featured a longer bayonet with a clasp and a stock with a comb.

[3] The Model 1840 was the last flintlock musket produced at Springfield and Harpers Ferry armories.

Although produced as a smoothbore musket, most of the Model 1840s had their barrels rifled later, as the designers had anticipated.