Rick and Morty want you to come on an adventure. What do you carry with?
You'll face everything from pedo jellybeans to violent Meeseeks to Cronenbergs.
I'd be more concerned about having the proper currency to buy one of the sexbots.
Who cares, you won't survive anyways?
Just go with the flow. Do what little you can to help humanity get the fuck off this planet. Stop acting like a chicken with its head cut off.
I'm pretty sure Rick's too jaded to really care much... I mean you don't become a rockstar with bird person and survive a war and have warrants for everything out for your arrest with the nearest galactic superpower without losing almost all your fucks left to give.
As for the thread at hand, whatever weapon Rick trusts me to be able to use properly, that or an sks... you can't really go wrong with an sks.