Possessing an assault weapon in Missouri would be illegal under a bill that has been introduced by a state House Democrat.

Rep. Rory Ellinger, of University City, filed a bill this week that would require gun owners to give up their semi-automatic weapons within 90 days of the measure's passage. Failure to surrender an assault weapon would result in a felony charge.

It would also be illegal to manufacture or import such weapons in the state. The measure would exempt state and federal law enforcement from the ban.

The bill has not been referred to a House committee, and the Republican-led Legislature is unlikely to act on it.