US Patent 9459078 Accessory mounting mechanism for firearm

An accessory mounting mechanism with a top portion consisting of a ring and a bottom portion consisting of a clamp is disclosed. The ring accepts an accessory. The ring is coupled to a clamp, which is configured to engage a firearm. The clamp further includes at least two detachable wedges, a cross bar, and a tightening mechanism, which may be either a thumb nut or a throw lever. The cross bar is threaded through both detachable wedges. Tightening by way of the thumb nut or the throw lever applies force against the wedges and the firearm simultaneously, which pushes the accessory upward into the ring and secures the clamp to the firearm.