Patent ID: 8793921

Claim:
A pivoting accessory mount for use with a firearm comprising: a base constructed and arranged to be received in a substantially fixed position on a firearm; a top pivotally attached to the base, the top being further capable of linear movement along a length of the base, the top having a first side and second side which attach to the base; a protrusion extending from a side of the base; a spring positioned in communication with the top and in communication with the base, the spring urging the first side of the top linearly towards the base; wherein the second side further comprises a spring retainer, the spring retainer configured to secure the spring in communication with the base; and wherein the first side of the top defines a first locking structure and a second locking structure, the first locking structure configured to engage the protrusion when the top is in an engaged position, and the second locking structure configured to engage the protrusion when the top is in a disengaged position, wherein the first or second locking structure is held engaged with the protrusion by the spring.