Rapidly adjustable receiver extension
View Patent ↗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.
1. A rapidly adjustable receiver extension, comprising:
a ramped indexing plate including a plurality of inclined surfaces with an indexing slot disposed adjacent each one of said plurality of inclined surfaces, a vertical wall extends downward from a top of each one of said plurality of inclined surfaces to said indexing slot; and
a receiver extension having an indexing plate slot formed therein to receive said ramped indexing plate, wherein said receiver extension is capable of being retained in a butt stock.
2. The rapidly adjustable receiver extension of claim 1 wherein:
a threaded tap or a hole is formed in at least one of said plurality of inclined surfaces to receive a threaded fastener or an object.
3. The rapidly adjustable receiver extension of claim 2 wherein:
said threaded tap or said hole is formed adjacent to said indexing slot.
4. The rapidly adjustable receiver extension of claim 1 wherein:
said indexing slot is longer than a diameter of an indexing pin.
5. The rapidly adjustable receiver extension of claim 1 wherein:
an end surface of a locking pin of a butt stock that contacts said indexing slot is substantially perpendicular to a lengthwise axis of the locking pin.
6. A rapidly adjustable receiver extension, comprising:
a receiver extension including a plurality of inclined surfaces with an indexing slot disposed adjacent each one of said plurality of inclined surfaces, a vertical wall extends downward from a top of each one of said plurality of inclined surface to said indexing slot, wherein said receiver extension is capable of being retained in a butt stock.
7. The rapidly adjustable receiver extension of claim 6 wherein:
a threaded tap or a hole is formed in at least one of said plurality of inclined surfaces to receive a threaded fastener or an object.
8. The rapidly adjustable receiver extension of claim 7 wherein:
said threaded tap or said hole is formed adjacent to said indexing slot.
9. The rapidly adjustable receiver extension of claim 6 wherein:
said indexing slot is longer than a diameter of an indexing pin.
10. The rapidly adjustable receiver extension of claim 6 wherein:
an end surface of a locking pin of a butt stock that contacts said indexing slot is substantially perpendicular to a lengthwise axis of the locking pin.