The belt buckle pistol was an experimental German World War II firearm consisting of two 7.65 mm or .22 long rifle barrels and lockwork concealed within a Nazi Party belt buckle. The barrels were 2″ long and the wearer needed to get very close to their victim.
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 less than ten of these guns have been discovered.
Only twelve (including prototypes and test models) were reportedly manufactured, and they were probably never used in combat.
By simultaneously squeezing the top and bottom levers on the right side of the picture the barrels (made from a solid block of steel) is spring loaded to swing open, pushing up the front cover and is ready to fire.
Pressing the triggers discharge the gun or by pressing on the Barrel Release Lever one can push the barrels back into the case, cocking the triggers and proving for the reloading of the gun.