Patent ID: 7810270

Claim:
A firearm butt stock comprising: an elongate stock base having a top, a bottom, a right side, a left side, a proximal end and a distal end, the stock base having a transverse pivot shaft near the stock base top and a transverse catch shaft spaced from the pivot shaft lengthwise of the stock near the stock base top; a cheek piece having a proximal end a distal end and left and right sidewalls, the cheek piece defining a plurality of lengthwise stacked receptacles opening toward a proximal end of the cheek piece and an elongate hole having a distal and a proximal end spaced lengthwise and distal of the stacked receptacles, the stacked receptacles, the catch shaft, the elongate hole and the pivot shaft being configured so that with the pivot shaft received in the elongate hole and the pivot shaft at the distal end of the elongate hole, the catch shaft is received in one of the stacked receptacles and the cheek piece is prevented from pivoting about the pivot shaft and with the pivot shaft at the proximal end of the elongate hole, the catch shaft clears the opening of the stacked receptacles and the cheek piece can pivot about the pivot shaft; and a spring detent operatively associated with one of the pivot shaft and the catch shaft, the spring detent preventing relative movement between the pivot shaft and the proximal and distal ends of the elongate hole without application of a lengthwise force to the cheek piece in a desired lengthwise direction of movement sufficient to overcome the spring detent.