I Am Here, by Sun Yuan and Peng Yu.

In the expedition "Wanderlust", at  Sotheby's
It's not in the catalogue, and the legal department, either under pressure or out of nervousness, removed the gun from the display. It's illegal to sell realistic toy guns in NY.

Here's the same piece at Artnet and at The Hammer, with the gun included

Art comes out of art; if any artist doesn’t admit to that, it doesn’t ring true...
John Baldessari

Amazing in retrospect how so many people once believed that.
See the previous post.