Help! Mystery Motor

I purchased a box of miscellaneous electrical parts at a swap meet. This 1250KV motor with a 9x6 prop was included in the box.

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I measure it as 35mm Diameter, 43mm Long with a 5mm shaft and weighing 5 ounces. The closest motor that I can find doing an internet search is this Firepower 15 Speed which is discontinued from Heads Up RC.

http://www.headsuphobby.com/Firepower-15-Speed-1250kv-Outrunner-Brushless-Motor_ep_121-1.html

Any guesses as to what this motor might be?