A bipod device attachable to the Picatinny rail on the underside of the barrel of a military-style gun. The housing of the bipod device includes two parallel channels formed therein to store bipod legs. The housing also includes an external longitudinal groove dimensioned and shaped to receive a Picatinny rail and a locking mechanism to secure the housing to the rail. The housing doubly functions as a grip for the user to support the barrel of the rifle. The two legs can be deployed by pulling them free of their channels in the housing and then pivoting them down and apart in one motion to their deployed position.