To protect the right of individuals to bear arms at water resources development projects administered by the Secretary of the Army, and for other purposes.

Recreational Lands Self-Defense Act of 2017 This bill prohibits the Army Corps of Engineers from promulgating or enforcing any regulation that prohibits an individual from possessing a firearm at a water resources development project administered by the Corps of Engineers if: (1) the individual is not otherwise prohibited by law from possessing the firearm, and (2) the possession of the firearm is in compliance with the law of the state in which the project is located.