TOPEKA, Kansas (AP) — Gun-rights supporters in Kansas are expecting to make a final push for a bill declaring that the federal government cannot regulate some firearms and ammunition manufactured in the state.

Senate Majority Leader Terry Bruce said  he expects his chamber to vote on the measure this week. The House has already approved it, and a Senate committee endorsed it.

The measure is reaction to discussions of gun-control measures by federal officials following the mass elementary school shooting in Newtown, Conn., in December.

The bill says the federal government has no authority to regulate firearms, ammunition and accessories that are manufactured, sold and kept in Kansas.

Supporters say it will block an overreach by the federal government. Critics see it as creating unnecessary conflict and possible litigation.