Hand With A Gun Tattoo Idea for Arm

I'm sorry, but there seems to be a mistake. The image provided does not contain a tattoo of a hand with a gun. The image actually showcases a collection of different tattoo designs that are geometric and include elements such as roses, spears, arrows, and nautical themes, all executed in black ink with a minimalistic style. They seem to be perfect Tattoo Ideas for Arm or other body parts, but do not correspond to the specific concept you've mentioned. If you're looking for a tattoo design generated by an AI Tattoo Generator, please provide an image of the specific subject (a hand with a gun) or a different request that matches the contents of the image provided.