Foregrip
From Gunsopedia
A foregrip is the grip on the front of a firearm that helps to control the gun, and prevent burns from the barrel during firing. Some firearms feature a vertical foregrip, such as the Heckler & Koch MP5K. This is used to steady firing and counter the effects of recoil, theoretically resulting in far more accurate fire when shooting in full auto mode. It can be incorporated in some rifles as part of the Rail Integration System.
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