German flare/grenade pistols and ammo (VWM)

The steel liner in the one gun is not even military as it is a post 1945 add-on made in the US (mainly by gunsmiths) to fit 12GA or 10GA cartridges.

German liners for grenades were different and dit not protrude from the barrel. While one was smooth and made of braas the other model was steel and rifled.