Trigger group for striker-fired firearms

A pistol comprising:

• a frame defining a medial plane;
• a slide connected to the frame and operable to reciprocate between a forward battery position and a rearward recoil position;
• a barrel connected to the slide and having a forward muzzle end;
• a trigger assembly connected to the frame and movable between a forward trigger position and a rearward trigger position;
• a firing pin assembly connected to the slide and operable to reciprocate between a rearward retracted position and a forward extended position;
• the firing pin assembly including a forward-facing retention surface;
• the trigger assembly including a sear surface configured to selectively engage the retention surface to releasably restrain the firing pin assembly;
• a selector movable between a first selector position and a second selector position;
• a connector operably engaged to the trigger assembly and to the selector;
• the connector movable between a first connector position and a second connector position;
• the connector being responsive to the selector position to move to the first connector position when the selector is in the first selector position and to the second connector position when the selector is in the second selector position;
• the connector having a first trigger assembly guide surface operably engaged to the trigger assembly to move the sear surface out of engagement with the firing pin retention surface in response to a movement of the trigger assembly from the forward trigger position to the rearward trigger position;
• and
• the connector having a second trigger assembly guide surface operably engaged to the trigger assembly to move the sear surface out of engagement with the firing pin retention surface in response to a movement of the trigger assembly to the forward trigger position.