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Firearms instructors Logan Martin and Andres Gonzalez of Calgary, Alberta, look through the sights of Sig Sauer Swat Patrol AR rifles during the annual SHOT Show in Las Vegas.

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Stuart Konicar of Scottsdale, Ariz., looks down the sight of a Remington Adaptive Combat Rifle on display at the Remington Defense exhibit at the annual SHOT Show in Las Vegas.

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A convention attendee looks through a Sig Sauer display case of various guns including a P938 Nightmare 9-mm semiautomatic pistol at the 35th annual SHOT Show in Las Vegas.

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Sig Sauer representative Adam Painchaud explains one of the company's newest products, the MPX 9-mm pistol caliber submachine gun at the 35th annual SHOT Show.