“To all gun manufacturers in Colorado, my question for you is simple. Do you want to move back to America? Montana is open for business and home to more than 150 firearms and ammunition manufacturers,” Gianforte said.

Colorado’s new law prohibits the selling and manufacturing of most semiautomatic firearms, without additional training and required approval from a local sheriff’s office.

The law specifically targets semiautomatic AR-15 and AK-47 rifles with detachable magazines.