Aperture and optical filter quick adjustment device of gun

The utility model discloses an aperture and optical filter quick adjustment device of a gun. The aperture and optical filter quick adjustment device comprises a sight, an aperture base body and a rear cover, the aperture base body is fixedly connected with the sight and the rear cover, the segment, adjacent to the rear cover, of the aperture base body is an aperture adjustment portion, the aperture adjustment portion is provided with a first installation groove and a first elastic ejection pin which are arranged in a vertical plane, a first adjustment plate is arranged in the first installation groove, each section of the first adjustment plate is provided with an aperture, the aperture adjustment portion is sleeved with an aperture adjustment ring, the segment, adjacent to the sight, of the aperture base body is an optical filter adjustment portion, the optical filter adjustment portion is provided with a second installation groove and a second elastic ejection pin which are arranged in a vertical plane, a second adjustment plate is arranged in the second installation groove, each section of the second adjustment plate is provided with an optical filter, and the optical filter adjustment portion is sleeved with an optical filter adjustment ring. The aperture and optical filter quick adjustment device of the gun is simple in structure, high in adjustment speed, reliable in positioning and capable of improving firing accuracy.