Here's the organizers stance on firearms at the march:

Spent an hour with two of the top cops this morning from the CHP. There is absolutely no guns allowed on state property. You will be arrested and I want you to know we are backing the police on this one. I know you have rights, but this is the law. And isn't that part of what we are conveying here? That we are law abiding citizens? Of course it is. So please, DONT BRING A GUN ON THE PROPERTY. DENVER PD also does not take kindly to this so I am asking you to use good judgement and common sense. We will have families with children there. I can assure you of this, there are other measures in place to protect the lives of everyone there. Next page DD