Prototype Dieckmann P66 Pistol at RIA

The P66 was a prototype .22LR semiauto pistol designed by a German immigrant to the United States by the name of Rolf Dieckmann. It never went into production, but had a number of interesting features, including a removable firing mechanism and a combination extractor and firing pin. In addition to Dieckmann pistol number X3, this auction lot also includes number X4, a cutaway model.