Handheld controller with spring-biased third finger button assembly

A handheld controller, comprising:

• a main body;
• a handle extending from the main body;
• a trigger button positioned on the main body or a first portion of the handle;
• a separate third-finger button positioned on a second portion of the handle and having a lever arm pivotally connected to the main body, the third finger button being movable relative to the handle between a depressed position and a released, extended position;
• and
• a button-biasing member pivotally coupled to the main body at a first portion of the button-biasing member positioned away from the lever arm, the button-biasing member having a second portion engaging the lever arm, wherein the button-biasing member urges the third-finger button toward the released, extended position relative to the handle.

A handheld controller, comprising:

• a main body;
• a handle extending from the main body;
• a trigger button positioned on the main body or a first portion of the handle;
• and
• a separate third-finger button assembly positioned on a second portion of the handle and having a finger-engaging button, a first lever arm engaging the finger-engaging button and having a proximal portion connected to the finger-engaging button and a distal portion pivotally coupled to the main body, wherein the finger-engaging button is movable relative to the handle between a depressed position and a released, extended position, the third-finger button assembly having a button-biasing member with a mounting boss pivotally coupled to the main body at a position spaced apart from the distal portion of the first lever arm, and having a second lever arm connected at a first end to the mounting boss and having a second end spaced apart from the first end, the second end engaging the first lever arm at an intermediate portion between the proximal and distal portions, wherein movement of the finger engaging button from the released, extended position to the depressed position causes the button-biasing member to pivot relative to the main body, and the button biasing member having a spring connected to the second lever arm and urging the second lever arm to press against the intermediate portion of the first lever arm to urge the finger-engaging button toward the released, extended position relative to the handle.