Patent attributes
A mounting device for use with a firearm comprising: (a) a first frame; (b) a second frame, where the first frame and the second frame collectively include a first sphere and a second sphere, where the first frame and the second frame collectively include a first receiver configured to restriction motion of the first sphere in at least one degree of freedom, where the first frame and the second frame collectively include a second receiver configured to restriction motion of the second sphere in at least one degree of freedom, and where the first frame and the second frame collectively include a projection and a lock configured to engage the projection and: (a) restrict motion of the first sphere in a degree of freedom not restricted by the first receiver, and (b) restrict motion of the second sphere in a degree of freedom not restricted by the second receiver.