"Looksmaxxing" influencer Clavicular unloaded a clip on a dead alligator in a Florida swamp ... and it's all on video.

The streamer was cruising through the Florida Everglades on an airboat when his group came upon a dead gator floating in the water ... and Claviuclar pulled out a handgun and squeezed off a bunch of shots.

Hard to tell if Clavicular is a good shot, even from close range ... there wasn't a lot of blood in the murky water and there were a lot of splashes from the bullets hitting the water.

In any event, Clavicular -- a dedicated Kick streamer whose real name is Braden Peters-- declared, "Hey, I think it's dead" after shooting up the dead reptile.

Clavicular's been steaming live for about 2 weeks as part of his 30-day marathon stream, and this is one way he's passing the time.

We reached out to the Florida Fish and Wildlife Conservation Commission ... so far, no word back.