Prospectus exerpt:  ARMOUR Residential REIT, Inc. is offering to the public 5,400,000 shares of our 7.875% Series B Cumulative Redeemable Preferred Stock, which we refer to in this prospectus supplement as the “Series B Preferred Stock.” This is an original issuance of the Series B Preferred Stock. We will pay monthly cumulative dividends on the Series B Preferred Stock on the 27th day of each month (provided that if any dividend payment date is not a business day, then the dividend which would otherwise have been payable on that dividend payment date may be paid on the next succeeding business day) from, and including, the date of original issuance at 7.875% of the $25.00 per share liquidation preference per annum (equivalent to $1.96875 per annum per share). The first dividend payable on March 27, 2013 in the amount of $0.2461 per share will be paid to the persons who are the holders of record of the Series B Preferred Stock at the close of business on March 15, 2013.

The Series B Preferred Stock will not be redeemable before February 12, 2018 except under circumstances intended to preserve our qualification as a real estate investment trust, or REIT, for federal income tax purposes and except as described below upon the occurrence of a Change of Control (as defined herein). On or after February 12, 2018 we may, at our option, redeem any or all of the shares of the Series B Preferred Stock at $25.00 per share plus any accumulated and unpaid dividends to, but not including, the redemption date. In addition, upon the occurrence of a Change of Control, we may, at our option, redeem any or all of the shares of Series B Preferred Stock within 120 days after the first date on which such Change of Control occurred at $25.00 per share plus any accumulated and unpaid dividends to, but not including, the redemption date. The Series B Preferred Stock has no stated maturity, is not subject to any sinking fund or mandatory redemption and will remain outstanding indefinitely unless repurchased or redeemed by us or converted into our common stock in connection with a Change of Control by the holders of Series B Preferred Stock.