Pandas are cute and harmless creature. This work of art featuring a Panda holding guns causes a deep contrast.
Moreover, the cute and helpless Panda decides to take a stand. The Panda then grabs what we associate with violence and anger, it provokes thought.
It's no secret that Banksy is an opinionated political activist. Many speculate that this piece of art depicts what Banksy sees as the rage of everyday people. To illustrate the innocent rallying against a system Banksy deems as corrupt.