OKLAHOMA CITY (AP) The Oklahoma City Thunder is among two dozen businesses, universities and law enforcement groups urging Oklahoma's Senate leader to kill two measures that would allow most adults to openly carry weapons without training or background checks.

The groups signed the letter to President Pro Tempore Brian Bingman asking him to stop House Bill 3098 and House Joint Resolution 1009, both pending this week in the state Senate.

Meanwhile, the National Rifle Association is mobilizing its members in support of the measures.

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The bill would allow adults over 21 without a felony conviction to openly carry firearms without a license, training or background checks.

The resolution seeks a public vote on whether to amend the Oklahoma Constitution to make it more difficult for the Legislature to regulate firearms.