Rotational sighting apparatus

A rotational sighting apparatus, comprising:

• a base comprising a main body, a side cover assembled onto the main body, a through hole formed on the side cover and a pivotal attachment space formed between the main body and the side cover;
• wherein the side cover further includes a locking portion adjacent to the through hole;
• an aiming member having a rotating portion received inside the pivotal attachment space and a pivotal attachment hole formed to penetrate through the rotating portion;
• and
• a pressing pivotal axle penetrating through the pivotal attachment hole to connect with the rotating portion via the through hole;
• the pressing pivotal axle having a locking key moveably locked with the locking portion;
• wherein the pressing pivotal axle includes a receiving slot provided for receiving an elastic element therein;
• one end of the elastic element is secured inside a locking slot on the pressing pivotal axle;
• the locking slot is an indented portion formed within at least a portion of the locking key and the locking slot communicates with the receiving slot;
• when the pressing pivotal axle is rotated, the elastic element stores an elastic rotational reaction force;
• and
• wherein when the pressing pivotal axle is pressed such that the locking key moves and disengages from the locking portion of the side cover, the elastic element releases the elastic rotational reaction force and causes the pressing pivotal axle to rotate such that the aiming member to rotates from a first position to a second position.