Bradley Cooper: Attached to Produce & Star in 'American Blood'!

Bradley Cooper shows off his huge guns while hitting up the gym on Tuesday (February 25) in West Hollywood, Calif.

Last week, the 39-year-old actor kept a low profile while checking out of his hotel with his Burberry model girlfriend Suki Waterhouse in New York City.

PHOTOS: Check out the latest pics of Bradley Cooper

It was recently announced that Bradley is attached to star and produce the upcoming adaptation of the book “American Blood,” according to Deadline.

The flick, which will center on a crime story by New Zealand-based bestselling author Ben Sandershas, has already been acquired by Warner Brothers.