A few thousand Coloradans ushered in their upcoming Independence Day celebrations by bidding farewell to one of their fundamental rights — to buy, own and give away ammunition magazines that hold more than 15 rounds — and vowing to take back control of a state government that they say represents liberal East Coast interests over their own.

Attendees of the nonprofit group Free Colorado’s Freedom Festival stocked up on 30-round Magpul magazines Saturday ahead of a statewide ban on them that goes into effect on Monday, with 1,500 given away for free on a first-come first-served basis. Held on an outdoor rugby pitch in the town of Glendale — which is adjacent to Denver, where magazines holding more than 20 rounds are already banned — the festival featured live music, food, beer and more than a few open-carry holstered pistols.