Smashburger: Free Sin City Burger

Smashburger.com [Restaurant Locator] is offering their Sin City Smashburger for Free w/ Purchase of Any Double Burger. Valid today only, 9/12/2019 at participating locations.

Note: For more details, click here.

Note: No coupon necessary. Valid only for a Single Sin City Beef Burger, no substitutions. Add-ons are an additional cost.

Note: The Sin City Burger is made w/ 100% certified Angus Beef, topped with fried egg, thick applewood smoked bacon, American cheese, grilled onions, haystack onions, and Smash sauce on a classic bun. Offer not valid for online or through third-party delivery. Not valid with other offers/discounts. Offer valid only for September 12, 2019.