External adjustment base for sight and sight

An external adjustment base for a sight, comprising:

• a base body, a first adjustment assembly, and a second adjustment assembly, wherein the first adjustment assembly and the second adjustment assembly are disposed on the base body along a first direction;
• the first adjustment assembly comprises a first adjustment rod disposed along a second direction, the second direction intersecting the first direction;
• the second adjustment assembly comprises a second adjustment rod disposed along the second direction;
• one end of the first adjustment rod and one end of the second adjustment rod are located on a lateral side of the base body;
• the first adjustment rod and the second adjustment rod are configured to be connected to a sight body;
• the first adjustment assembly is configured to cause the sight body to rotate about the second adjustment rod with the rotation of the first adjustment rod;
• and the second adjustment assembly is configured to cause the sight body to move along the second adjustment rod with the rotation of the second adjustment rod.