Semiautomatic hand gun

A articulated firing pin comprising:

• an elongated body portion, said body portion having a hammer impact surface at a first end thereof, said body portion having a cavity extending inwardly from a second end thereof which is oppositely disposed with respect to said first end, the base of said cavity being defined by an arcuate seating surface;
• an elongated detonation pin, said detonation pin having an axis and having its first end shaped to define a cartridge strike surface, the second end of said detonation pin being disposed along said axis and oppositely with respect to said strike surface, said second end of said detonation pin having an arcuate surface which is generally complimentary in shape to said body portion seating surface, said detonation pin second end being received in said body portion cavity with said arcuate surface in contact with said seating surface, said detonation pin further being provided with a bore which is generally transverse to said axis;
• and
• a retaining pin for securing said detonation pin to said body portion, said retaining pin extending through said detonation pin bore and being engaged by the cavity defining wall of said body portion, the cross-sectional area of said retaining pin being smaller than the cross-sectional area of said detonation pin bore, said retaining pin being spacially displaced from at least the side of said bore which is most closely spaced from said seating surface.