[2] It has an internal striker within the bolt and a tube magazine which loaded and ejected from a port in the bottom of the receiver.

[3] The United States military used a short-barreled version known variously as the "trench" or "riot" shotgun.

[6] The Model 10 was modified by reducing the 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.

[6] These trench guns with serial numbers between 128000 and 166000 were stamped with US and the flaming bomb insignia on the left side of the receiver.

[5] Remington also developed a "trench gun" variant for the Russian army, which existed in both long-barreled and short-barreled versions, and featured a rifle-style wooden barrel shroud and a mount for a Mosin-Nagant bayonet.