Although currently unannounced in the US, online retailers Amazon and GameFly are both listing the Portable Ops expansion Metal Gear Solid: Portable Ops Plus for a November release in the US.

The game is set to hit Japan in September, so a November release seems realistic. Whatever the case, hopefully we’ll get an official confirmation from Konami soon.

MGS: Portable Ops Plus spotted on GameFly, Amazon [PSPFanboy]

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