n this photo taken Wednesday, Aug. 15, 2012,  three variations of the AR-15 assault rifle are displayed at the California Department of Justice in Sacramento, Calif.   While the guns look similar, the bottom version is illegal in California because of it's quick reload capabilities.  State Sen. Leland Yee, D-San Francisco, is proposing to change California law to make it more difficult and time-consuming to reload.  The proposed measure is one of a number of gun control laws being introduced in some the nations most populous states after the recent shootings in Colorado.(AP Photo/Rich Pedroncelli)
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