Nazi belt buckle pistol

The belt buckle pistol was an experimental German World War II firearm consisting of four 7.65 mm or .22 long rifle barrels and lockwork concealed within a SS belt buckle. The barrels were 2" long and Smoothbore. A lever was pressed which allowed the spring-loaded buckle to pivot downwards, exposing the barrel.

Noted firearms authority S.P. Fjestad claims that they were designed by Louis Marquis while he was in a prisoner of war camp during World War I and that fewer than ten of these guns have been discovered.