http://www.forgottenweapons.com 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. Theme music by Dylan Benson - http://dbproductioncompany.webs.com