Buki Buki no Mi

The Buki Buki no Mi is a Paramecia type Devil Fruit that gives the user the ability to change their body parts into weapons, which lets the user become a Full-body Weapon Human (全身武器人間). It was eaten by Baby 5.

Strengths and Weaknesses
The Buki Buki no Mi gives the user the ability to change their arms into any kind of weapon; according to the description, the fruit turns the user into a "Full Body Weapon Human", so the rest of the body is also capable of such transformation. The types of producible weapons may be limited, as Baby 5 was seen carrying additional weapons.

This fruit does not seem to have a weakness aside from the standard Devil Fruit weaknesses.

Usage
Baby 5 predictably uses this fruit for assassination and combat at both long and close range. So far, she has been able to change her arm into a cannon, an axe, and a scythe, as well as transforming her finger into a gun.