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 having a trigger lever 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 trigger control facility operably connected to the trigger assembly and movable between a first state and a second state;
• the trigger control facility 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 lever from the forward trigger position to the rearward trigger position;
• and
• the trigger control facility having a second trigger assembly guide surface selectably 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 lever to the forward trigger position.