A coupler for interconnecting an archery bow and an adjustable firearm shooting support includes a housing with an actuator lever and a lower actuator extending respectively therefrom and being pivotally interconnected to opposite ends of a linkage. The firearm support is vertically adjustable and activated by a trigger mechanism whereby activation of the actuator lever causes the lower actuator to pivot outwardly into contact with the firearm support trigger to allow vertical adjustability of the bow and whereby deactivation of the actuator lever stabilizes movement of the bow into a support or rest position.