Ryan Gosling: Bulging Biceps on 'How to Catch a Monster' Set!

Ryan Gosling shows off his huge guns while doing some heavy lifting on the set of his new film How To Catch A Monster on Friday (May 3) in Detroit, Mich.

Earlier in the week, the 32-year-old actor and his girlfriend Eva Mendes were spotted on the set of the film.

PHOTOS: Check out the latest pics of Ryan Gosling

In case you missed it, check out Ryan boxing shirtless in a newly released clip for his upcoming film Only God Forgives.

15+ pictures inside of Ryan Gosling showing his bulging biceps…