The Halo 3 M90 Close Assault Weapon System, widely known as the "Shotgun." Modifications in this model include the tactical rail on the top of the weapon, the stock, made from an M16A4 model, and a dial above the grip for switching between pump-action and semi-automatic. Some of my models are branded with a Japanese character of its model number. This one has 90 in Japanese; the model number being M90. Created from the Shotgun model by Birdman.
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