Christopher Dorner -- Gruesome Death Photos for Sale

Christopher Dorner's badly scorched, partially dismembered body was photographed after his death ... and TMZ has learned the pics are now being shopped to the media.

TMZ has seen the photos (the sellers showed up to our doorstep) -- and the shots are extremely gruesome.

The top of Dorner's head is gone ... presumably the result of the self-inflicted gunshot wound that ended his life after the gun battle at a remote cabin in Big Bear, CA last week.

The body is missing several limbs ... including an arm and parts of a leg ... and his midsection is charred from the fire that consumed the cabin during the Feb. 12 shoot-out.

In fact, Dorner's upper teeth were barely damaged ... which helped authorities ID the body.