Video of Rob Gronkowski Firing a Huge Gun

Rob Gronkowski spends time doing a lot of cool stuff in the off-season. We've seen him dancing at clubs, giving BMX pressers, hanging out with models in hot tubs, and just well... being Gronk. Add firing off a huge gun to his resume.

 
Polumbus & Lindahl

Polumbus & Lindahl

Tyler Polumbus & Andy Lindahl

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