A revolver, comprising: a frame; a yoke mounted on said frame and movable about a pivot axis between an open and a closed position, a recess being positioned within said yoke; a cylinder mounted on said yoke; a detent mechanism, comprising: a housing mounted on said frame adjacent to said yoke; a pin bore positioned within said housing, said pin bore extending longitudinally along a pin bore axis; a pin having a tip, said pin being positioned within said pin bore and movable along said pin bore axis between a first position, wherein said tip projects from said housing and engages said recess when said yoke is in said closed position, and a second position, wherein said tip is within said housing; characterized by: a plunger cavity positioned within said housing and intersecting said pin bore, said plunger cavity extending longitudinally along a plunger cavity axis, said plunger cavity axis being oriented transversely to said pin bore axis; an action surface positioned on said pin, said action surface being oriented transversely to said pin bore axis; a plunger having an end, said plunger being positioned within said plunger cavity and movable along said plunger cavity axis; a spring positioned within said plunger cavity and biasing said end of said plunger into engagement with said action surface of said pin. a frame; a yoke mounted on said frame and movable about a pivot axis between an open and a closed position, a recess being positioned within said yoke; a cylinder mounted on said yoke; a detent mechanism, comprising: a housing mounted on said frame adjacent to said yoke; a pin bore positioned within said housing, said pin bore extending longitudinally along a pin bore axis; a pin having a tip, said pin being positioned within said pin bore and movable along said pin bore axis between a first position, wherein said tip projects from said housing and engages said recess when said yoke is in said closed position, and a second position, wherein said tip is within said housing; characterized by: a plunger cavity positioned within said housing and intersecting said pin bore, said plunger cavity extending longitudinally along a plunger cavity axis, said plunger cavity axis being oriented transversely to said pin bore axis; an action surface positioned on said pin, said action surface being oriented transversely to said pin bore axis; a plunger having an end, said plunger being positioned within said plunger cavity and movable along said plunger cavity axis; a spring positioned within said plunger cavity and biasing said end of said plunger into engagement with said action surface of said pin. a housing mounted on said frame adjacent to said yoke; a pin bore positioned within said housing, said pin bore extending longitudinally along a pin bore axis; a pin having a tip, said pin being positioned within said pin bore and movable along said pin bore axis between a first position, wherein said tip projects from said housing and engages said recess when said yoke is in said closed position, and a second position, wherein said tip is within said housing; characterized by: a plunger cavity positioned within said housing and intersecting said pin bore, said plunger cavity extending longitudinally along a plunger cavity axis, said plunger cavity axis being oriented transversely to said pin bore axis; an action surface positioned on said pin, said action surface being oriented transversely to said pin bore axis; a plunger having an end, said plunger being positioned within said plunger cavity and movable along said plunger cavity axis; a spring positioned within said plunger cavity and biasing said end of said plunger into engagement with said action surface of said pin.