Shortened name for the People's Republic of Kalifornistan - a name referring to California; specifically, it's laws regarding gun ownership.
Though rarely, if ever, used in a crime, Kalifornistan has outlawed what they deem to be "evil" rifles - such as the AR-15 (civilian variant of the military M16) and the AK-47 - in any non-California legal variation. Having a number of "evil" features (such as a forward pistol grip, which is no more dangerous than having a tuna fish as a weapon) are limited in the number allowed on a given firearm. Any magazine above 10 rounds is illegal, since only the 11th shot fired from a firearm can kill someone.
The legislation put forth by the People's Republic of Kalifornistan has clearly worked, as Los Angeles still tops the list as one of the most dangerous places in the United States.
If Kalifornistan entirely outlaws firearms, the state will be much safer. Hardened street thugs and criminals never break the law, so there is no need to worry.