Patent attributes
A rapidly adjustable receiver extension preferably includes a modified receiver extension and a ramped indexing plate. The modified receiver extension includes an indexing slot machined in a standard receiver extension to receive the ramped indexing plate. The ramped indexing plate is retained in the indexing slot with any suitable retention method. The ramped indexing plate preferably includes a plurality of inclined surfaces with a flat indexing slot disposed between two adjacent inclined surfaces. A length of the flat indexing slot is slightly longer than a diameter of a locking pin. A threaded tap is formed in each inclined surface for receiving a set screw or the like as a stop. One end of the rapidly adjustable receiver extension is attached to a rifle and an opposing end of the modified receiver extension is retained in a butt stock.
