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SPRINGVILLE, UT - JUNE 17:  David Barkerlooks at an AR-15 semi-automatic gun to  at Action Target on June 17, 2016 in Springville, Utah. Semi-automatics are in the news again after the nightclub shooting in Orlando F;lord last week. (Photo by George Frey/Getty Images)
SPRINGVILLE, UT - JUNE 17:  David Barkerlooks at an AR-15 semi-automatic gun to  at Action Target on June 17, 2016 in Springville, Utah. Semi-automatics are in the news again after the nightclub shooting in Orlando F;lord last week. (Photo by George Frey/Getty Images)

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    Weapons you can purchase legally in the US

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Weapons you can purchase legally in the US

Americans have the largest supply of civilian-owned firearms in the world. CNN takes a look at why, and which one is the most popular.

Weapons you can purchase legally in the US

Americans have the largest supply of civilian-owned firearms in the world. CNN takes a look at why, and which one is the most popular.