Patent ID: 8136284

Claim:
An accessory adapter for firearms, comprising: an upper plate member having an upper facing surface and a lower facing surface, the upper plate member having a pair of clamp rails, wherein the clamp rails include a rotatable knob for allowing the clamp rails to move toward or away from each other; a lower plate member having an upper facing surface and a lower facing surface, the lower facing surface having a pair of picatinny rails; and a hinge for pivotally attaching one end of the upper plate member to one end of the lower plate member, where the upper plate member and the lower plate member are pivotable between a position where the upper plate member and the lower plate member are sandwiched to one another, and be pivotable to a down position where the lower plate member is perpendicular to the upper plate member, and wherein the adapter is useful for attaching accessories to the firearm.