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DES MOINES, Iowa — Gov. Terry Branstad is set to make a change to gun law Thursday.

Lawmakers recently passed a bill to legalize gun suppressors in Iowa. House File 2279 passed in the Senate 46-6 and in the House 78-21.

Supporters say they can reduce the sound of gun shot by 20 to 30 percent. Opponents say shooters can use ear protection instead.

The governor is scheduled to sign the bill into law Thursday afternoon at Brownell’s in Grinnell. The company is Iowa-based and manufactures gun parts and ammunition.