That's the women's Tee...
The men's Tee is all black with an smile shape on over the left breast, and on the back down the center is a long gray block of text, and something else in brighter letters, but don't worry, the men's pretty basic.
The gun on the right is wearing the shirt
http://a1.vox.com/6a00e398a1e3c2000500e398a679910003-pi
anyone have a better pic, and one of the back?
cheers, -d