Collapsible carbine stock with spare magazine storage enclosure

• US 20070261284A1
• Filed: 05/11/2007
• Published: 11/15/2007
• Est. Priority Date: 05/11/2006
• Status: Active Grant

• Current Assignee: Kengs Firearms Speciality Incorporated
• Original Assignee: Kengs Firearms Speciality Incorporated
• Inventors: Keng, Da
• Granted Patent: US 7,937,873 B2
• Time in Patent Office: Days
• US Class Current: 42/73
• CPC Class Codes: F41C 23/04 Folding or telescopic stocks or stock parts articulated or collapsible guns F41A11/04
• CPC Class Codes: F41C 23/14 Adjustable stock or stock parts, i.e. adaptable to personal requirements, e.g. length, pitch, cast or drop
• CPC Class Codes: F41C 23/22 Stocks having space for the storage of objects

Abstract

A collapsible buttstock which is adapted primarily for use with military and tactical carbines, is supported by an extension tube which is connectable to the receiver of a carbine on which the collapsible buttstock is to be mounted. A storage enclosure is formed in the body of the buttstock and is sized and dimensioned so that it can receive a clip or magazine, typically able to carry 20 rounds, that is usable with the carbine on which the collapsible buttstock is mounted. The enclosure is provided with an openable cover that is hingably attached to the buttstock body. An easily operable cover latch assembly is usable to secure the cover in a closed position while facilitating expeditious opening of the cover to afford access to the spare magazine storage enclosure.

Claims

1. A collapsible carbine stock comprising:

an extension tube adapted to be securable to a carbine;

a buttstock body adjustably supported on said extension tube;

a buttstock enclosure in said buttstock body, said buttstock enclosure being adapted to receive a magazine usable in the carbine; and

a cover door for said buttstock enclosure, said cover door being supported on said buttstock body for movement between a closed position and an open position.

2. The collapsible carbine stock of claim 1 further including an extension tube receiving passage in said buttstock body, said extension tube receiving passage having a keyway, and a key on said extension tube.

3. The collapsible carbine stock of claim 2 wherein said extension tube key is an axially extending flange.

4. The collapsible carbine stock of claim 3 including a plurality of axially spaced flange through bores in said flange and further including a collapsible buttstock lock assembly in said buttstock body.

5. The collapsible carbine stock of claim 4 wherein said collapsible buttstock lock assembly includes a transversely slidable lock bolt, said slidable lock bolt having a locking projection at a first end and being receivable in a slidable one of said plurality of axially spaced flange through bores.

6. The collapsible carbine stock of claim 5 further including a collapsible buttstock locking assembly release button on a second end of said slidable lock bolt.

7. The collapsible carbine stock of claim 5 further including a biasing spring usable to bias said locking projection into said selectable one of said plurality of axially spaced flange through bores.

8. The collapsible carbine stock of claim 6 further including a release button receiving recess in said buttstock body and adapted to receive said collapsible buttstock locking assembly release button.

9. A collapsible buttstock assembly comprising:

an extension tube adapted to receive a buffer assembly of a carbine and being securable to a receiver of the carbine;

a buttstock body positionable on said extension tube;

means for adjusting said position of said buttstock body on said extension tube;

a magazine receiving enclosure in said buttstock body;

a cover for said enclosure, said cover being hingedly attached to said buttstock body; and

a cover latch on said cover.

10. The collapsible buttstock of claim 9 wherein said buttstock body is supported on said extension tube for only slidable movement along said extension tube in an axial direction of said extension tube.

11. The collapsible buttstock of claim 9 further including a hinge pin securable in said buttstock body, and a hinge sleeve on said cover, said hinge pin passing through said hinge sleeve.

12. The collapsible buttstock of claim 11 wherein said hinge pin is generally parallel with a longitudinal axis of said extension tube.

13. The collapsible buttstock of claim 9 wherein said magazine receiving enclosure is generally rectangular.

14. The collapsible buttstock of claim 11 further including a butt plate on said buttstock body, said hinge pin passing through said butt plate.

15. The collapsible buttstock of claim 11 further including a hinge sleeve receiving notch in said buttstock body.

16. A buttstock for a carbine comprising:

a buttstock body;

a magazine receiving enclosure in said buttstock body;

a cover for said enclosure and supported on said buttstock body for movement between open and closed positions;

a cover latch assembly for said cover; and

means for mounting said buttstock on a receiver of the carbine.

17. The buttstock of claim 16 wherein said enclosure is generally rectangular and is sized to receive a twenty round magazine.

18. The buttstock of claim 16 wherein said buttstock body supports a hinge pin that is interposed between said buttstock body and said cover.

19. The buttstock of claim 16 wherein said cover latch assembly includes at least one slidable latch pin supported in said cover, and further wherein said buttstock body includes at least one latch pin receiving blind bore.

20. The buttstock of claim 19 further including at least one latch pin retraction lever engageable with said at least one slidable latch pin and adapted to slide said latch pin into said at least one latch pin receiving blind bore and out of said at least one latch pin receiving blind bore in opposition to a biasing force imposed by a biasing spring in said cover.