Remington Model 10

The Remington Model 10 is a pump-action shotgun designed by John Pedersen with an internal hammer and tube magazine.

Military use
The United States military used a short-barreled version known variously as the "trench" or "riot" shotgun. The Winchester Model 1897 was the major production, but Remington made 3500 of the Model 10-A version for issue to U.S. troops during World War I. The Model 10 was modified by reducing barrel length to 23 inches (58 cm) and adding sling swivels, a wooden heat shield over the barrel, and an adapter with bayonet lug for affixing a M1917 bayonet. The United States military also purchased a number of Remington Model 10 with 20-inch (51-cm) barrels for guarding prisoners, and 26 to 30-inch (66 to 76-cm) barrels for training aerial gunners. The Model 10-A was used in limited numbers by the Marine Corps through the 1930s.