By Annie Barrett
December 26, 2012 at 08:05 PM EST

During Sunday’s Meet the Press, David Gregory held up what he described as a 30-round magazine of ammunition as part of an interview with the NRA’s Wayne LaPierre. The Washington Metropolitan Police Department is investigating whether Gregory and NBC violated D.C. gun laws during the segment.

Possessing a large capacity ammunition device is illegal in D.C., if the device holds more than 10 rounds of ammunition. The police had told NBC they could not use the magazine and the matter is under investigation, according to CNN.

Video of Sunday’s show is below; Gregory holds up the magazine around 9:50.

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