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Morgan Stanley US Government Securities Trust

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Supplement [Text Block]

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Morgan Stanley

January 31, 2019

Supplement

SUPPLEMENT DATED JANUARY 31, 2019 TO THE PROSPECTUSES OF

Morgan Stanley U.S. Government Securities Trust, dated April 30, 2018

Risk/Return [Heading]

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Morgan Stanley US Government Securities Trust

Expense Narrative [Text Block]

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The following is hereby added as the second paragraph of the section of each Prospectus entitled "Fund Summary—Fees and Expenses":

Class I shares may be available on brokerage platforms of firms that have agreements with the Fund's principal underwriter permitting such firms to (i) offer Class I shares solely when acting as an agent for the investor and (ii) impose on an investor transacting in Class I shares through such platforms a commission and/or other forms of compensation to the broker. Shares of the Fund are available in other share classes that have different fees and expenses.

Please retain this supplement for future reference.