Were guns present at the January 6th Capitol insurrection?

The deadly insurrection attempt at the Capitol on January 6, 2021 was fueled, in part, by gun rights extremists who brought their firepower to Washington to stop the certification of the electoral college votes. At least nine people who were at or around the Capitol were arrested on weapons charges. A review of the police reports related to the arrests show that police seized at least 3,071 rounds of ammunition during the course of these arrests.  Hundreds of rounds of additional ammo were found during the subsequent arrests of other individuals who participated.