Position adjustable tactical light structure for long gun

A position adjustable tactical light structure for long gun, comprising:

• a first clamping means (100) which comprises a base (100) and a clamp (120) for mounting a portable lighting apparatus (600);
• the clamp (200) is mounted on a first end surface of the base (110);
• sliding slots (130) are formed on two opposite side walls of the base (110);
• a second end surface of the base (110) is provided with a groove (111);
• the first end surface and the second end surface face each other;
• fixing rings (200), each of which comprises a connecting strip (210) and first fixing members (22) provided at two ends of the connecting strip (210);
• the connecting strips (210) are mounted on the sliding slots (130) for the base (110) to slide on the fixing rings (200);
• a support (300) comprising a body (310) and a plurality of contact beads (320);
• the plurality of contact beads (320) are mounted on the body (310) by elastic members (350), and the contact beads (320) and the groove (111) have corresponding shape and size;
• second fixing members (340) are provided on end portions of the body (310);
• the first fixing members (220) are fixedly connected with the second fixing members (340);
• a second clamping means for fixedly connected with a firearm rail (500), comprising a fixing block (410) and movable lock blocks (420) mounted on two sides of the fixing block (410);
• the fixing block (410) is mounted on the support (300), and the fixing block (410) is mounted on an end surface of the support (300) which faces away from the contact beads (320).