http://www.leg.state.co.us/clics/clics2013a/csl.nsf/billcontainers/7E6713B015E62E6F87257B0100813CB5/$FILE/1224_01.pdf
This could all become a reality by July of this year if someone doesn't stop it.
From Magpuls Facebook Page:
Looks like the best efforts of a lot of people and organizations went unheard. HB1224 was passed out of committee by 7-4 vote. Thanks for your support today. We are not finished. We will post our next moves and where to focus efforts tomorrow.
This bill was passed out of the House Judiciary Committee on 2/12/13 by a vote of 7-4.
HB 13-1224 - Concerning Prohibiting Large-Capacity Ammunition Magazines
PDF of the bill
Being heard by: House Judiciary Committee, 02/12/13
The bill prohibits the sale, transfer, or possession of an ammunition feeding device that is capable of accepting, or that can be readily converted to accept, more than 10 rounds of ammunition or more than 5 shotgun shells (large-capacity magazine.) A person may possess a large-capacity magazine if he or she owns the large-capacity magazine on the effective date of the bill and maintains continuous possession of the large-capacity magazine.