1/10th scale AIM-9 Sidewinder specifically made for the Freewing A-10 Thunderbolt II. Missile body has a slot to fit attachment hardware:
I have also included STL files for those who don't want the slot in the body. Not sure how well this will scale down for smaller RC planes, so I might be uploading a separate AIM-9 model in 1/12th scale with less detail for printability.
2 perimeters is recommended. You can probably reduce the infill to 5%. Add brims to the missile body as it can come loose from the build plate mid-print since it is skinny and tall, or reduce print speed.
Missile body should be able to press fit without any trimming needed. the fins and tails will need their bases trimmed a bit to fit properly into the slots on the body.