A method and apparatus counteracts the muzzle lift of a firearm resulting from recoil, and a firearm has an integral counteracting structure. The first and second magnetic members are displaceable relative to each other to provide a magnetic circuit having a variable reluctance. Furthermore, the armchair with a storage device is easy to assemble and simply structured without changing too much the structure of the armchair. The cover assembly generally comprises two anchoring rails fixedly attached to the sides of the truck bed, and two or more articulated cover support assemblies, extending across the bed, with an attached flexible cover assembly. Through the use of this hybrid view, the number of views to navigate between can be reduced without sacrificing function to simplify the calendaring experience.