Here are the Details on the New Mac Jr. and Grand Mac at McDonald's

Now that McDonald's has officially launched the new Mac Jr. and Grand Mac versions of their iconic Big Mac, as expected, here's what you can expect from the new burgers:

- Like the Big Mac, they both consist of beef, Big Mac special sauce, lettuce, American cheese, pickles, and onions on a sesame seed bun.

- They're only here for a limited time - Specifically, through March 20, 2017 (nationally), while supplies last (some areas, like here in Southern California, will offer it for longer; mid-April here).

- The prices for the sandwiches varies by location but should be around $3 for the Mac Jr. and around $5 for the Grand Mac.

- The Mac Jr.'s single patty is the same as one from the Grand Mac and is bigger than the ones you find in a Big Mac.

- The Grand Mac's double beef patties are good for a third of a pound (pre-cooked weight).

Here's the nutritional info for the three sandwiches:

Nutritional Info - McDonald's Grand Mac
Calories - 860 (from Fat - 470)
Fat - 52g (Saturated Fat - 18g)
Sodium - 1470mg
Carbs - 62g (Sugar - 13g)
Protein - 41g

Nutritional Info - McDonald's Big Mac
Calories - 540 (from Fat - 250)
Fat - 28g (Saturated Fat - 10g)
Sodium - 950mg
Carbs - 46g (Sugar - 9g)
Protein - 25g

Nutritional Info - McDonald's Mac Jr.
Calories - 460 (from Fat - 240)
Fat - 27g (Saturated Fat - 9g)
Sodium - 830mg
Carbs - 36g (Sugar - 7g)
Protein - 21g

Photo via McDonald's