(CNN) One day after Vermont lawmakers approved sweeping gun control measures that include limits on the size of magazines, gun-rights supporters held a large protest outside the state Capitol in Montpelier.

And to boost enthusiasm, they handed out gifts: Hundreds of free rifle magazines, each capable of holding 30 rounds of ammunition.

But Vermont residents will be permitted to keep larger-capacity magazines they already own, creating a sense of urgency among state gun owners looking to stock up before the bill becomes law.

"My fear is that legislators will pass knee-jerk legislation without any depth, any meaning, and it's really not going to make Vermont any safer," Rob Curtis, one of the rally's organizers, told CNN affiliate WCAX . Curtis is executive editor of Recoil, a firearms lifestyle magazine.

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