Quick-draw assembly structure and flashlight

A flashlight, comprising a quick-draw assembly structure, wherein the quick-draw assembly structure comprises:

• a main housing, wherein a sleeve is slidably mounted on the main housing;
• a locking member, the locking member is disposed at an end of the main housing, wherein a mounting groove is provided at an end of the locking member away from the main housing, and a plurality of through holes are circumferentially arranged around the locking member, the through holes are corresponded to a location of the mounting groove, and a retaining member is slidably mounted within each of the through holes;
• an end cap, the end cap comprises a mounting post configured to be inserted into and removed from the mounting groove, the mounting post comprises a locking groove corresponded to the through holes, and the locking groove is engaged with the retaining member along a predetermined arcuate surface;
• the end cap further comprises a connecting member;
• and
• the flashlight further comprises a lighting assembly, is the lighting assembly is arranged inside the main housing, and the end of the main housing away from the locking member is provided with hollow out.