A bill to protect the security of the United States by ensuring the quality of munitions manufactured at the McAlester Army Ammunition Plant, McAlester, Oklahoma, to clarify the meaning of the term "mission-essential material" and for other purposes.

Amends the Department of Defense Authorization Act of 1986 to specify the scope of mission-essential materiel and core logistics functions in the case of the McAlester Army Ammunition Plant, McAlester, Oklahoma. (Sets forth such functions also for purposes of the Department of Defense Authorization Act, 1985.)

Prohibits the Department of Defense from studying the contracting out of such functions.