Flare gun

[3] Modern varieties are frequently made out of durable plastic of a bright colour that makes them more conspicuous and easier to retrieve in an emergency and assists in distinguishing them from conventional firearms.

[citation needed] In the Russian Federation, which also has strict controls on firearms, a special tube-shaped flare launching device called a "Hunter's Signal" (Сигнал Охотника) is available.

The flares must be shot directly above, making the signal visible for a longer period of time and revealing the position of whoever is in need of assistance.

[6][7][8] In World War II, Germany manufactured grenades designed to be fired from adapted flare guns known as the Sturmpistole in its final form.

Use of any of these devices in the Orion plastic 12 gauge flare gun is not recommended by the manufacturer and ATF tests have demonstrated that sometimes a single use results in a catastrophic failure.

An Orion-brand single-shot, breech-loaded , 12 gauge flare gun. Its design is typical of commercially available flare guns, with a high-visibility red casing.
Patel Gun
A single-shot, 26.5/25mm flare gun manufactured by Patel Ballistics. It is chambered in a different caliber from the Orion flare gun.
British 1" calibre Very pistol used in World War I
A Molins No.2 Mk.5, 1-inch calibre Very pistol, c. 1940 , made by Berridge Ltd.