The Leuchtpistole 34 was a German flare gun introduced into service in 1928 by the Walther company. It featured a relatively simple design with a 27mm, smooth bore barrel, a break-action breech, and it soon became the standard signal device of the German armed forces. However, German engineers soon realized what the potential the Leuchtpistole had for other uses. A rifled, 23mm insert barrel was used to fire a variety of flare and explosive ammunition, and the weapon became known as the Kampfpistole or "combat pistol".
This variant was capable of firing, amongst other things, a hand-grenade that was attached to a long wooden stick.
You can kill a enemy with the Kampfpistole with all rounds, except flare. Even with a signal and a marker round, you could kill someone! With the Flare, you can not kill someone!