Adjustable firearm stock

• US 9,664,479 B1
• Filed: 08/23/2016
• Issued: 05/30/2017
• Est. Priority Date: 08/23/2016
• Status: Active Grant

• Current Assignee: RMDI, LLC
• Original Assignee: RMDI, LLC
• Inventors: Keeney, Eric Randall, Robinson, Alexander J.
• Primary Examiner(s): Morgan, Derrick
• Application Number:
  US15/245,155
• Time in Patent Office: 280 Days
• Field of Search: 42 7501, 42 7503, 42 7101, 42 73, 42 72
• 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 23/20 Butts; Butt plates; Mountings therefor F41C23/08, F41C23/10, F41C23/14 take precedence

Abstract

An adjustable stock for a firearm having a first side, a second side, and a bottom side. The stock includes a fixed body attachable to the firearm and a moveable body slideably connected to the fixed body. The second body includes a butt of the stock. A position selector is disposed to selectively fix the relative position of the moveable body to the fixed body. The position selector is disposed on one of a first side and a bottom side. A position retention device provides a second point of selective fixation between the fixed body and the moveable body. The position retention device is disposed on one of a first side and a bottom side.

Claims

1. An adjustable stock for a firearm having a first side, a second side, and a bottom side, comprising:

a fixed body attachable to the firearm;

a moveable body slideably connected to the fixed body, the moveable body including a butt of the adjustable stock;

a position selector disposed to selectively fix the relative position of the moveable body to the fixed body at one of a plurality of locations, wherein the position selector is disposed on one of a first side and a bottom side;

a position retention device providing a point of selective fixation between the fixed body and the moveable body, wherein the position retention device is disposed on one of a first side and a bottom side;

wherein the position retention device is supported by the moveable body;

wherein the position retention device includes a locking surface that selectively abuts a reciprocal lock surface of the fixed body to lock the moveable body to the fixed body; and

wherein the moveable body includes a retention aperture, wherein the position retention device includes a shaft extending through the retention aperture and a locking member comprising the locking surface attached to an end of the shaft.

2. The stock of claim 1, wherein the locking member is plate.

3. The stock of claim 1, wherein one or more of the locking surface of the position retention device and the reciprocal lock surface of the fixed body is knurled.

4. The stock of claim 1, wherein one or more of the locking surface of the position retention device and the reciprocal lock surface of the fixed body has a high friction material coating.

5. The stock of claim 4, wherein the high friction material coating is an elastomer.

6. The stock of claim 1, wherein the position retention device is disposed at a front end of the moveable body opposite the butt.

7. The stock of claim 6, wherein the fixed body includes a sliding channel having a bottom surface, wherein the bottom surface is the reciprocal lock surface, wherein the front end of the moveable body is disposed in the sliding channel.

8. The stock of claim 1, further comprising:

a hole defined in one of the fixed body and the moveable body, the hole having a first side opening and a second side opening disposed opposite the first side opening;

a plurality of locating slots defined in the other of the fixed body and the moveable body;

wherein the position selector includes;

a first selector body having a body portion shaped as a button having an engagement surface and a protrusion extending away from the body portion;

a second selector body having a body portion shaped as a button having an engagement surface and a protrusion extending away from the body portion; and

a biasing device disposed between the first and second selector bodies to bias the first and second selector bodies apart, wherein the position selector is disposed in the hole, wherein the engagement surface of the first selector body extends from the first side opening and the engagement surface of the second selector body extends from the second side opening, wherein one of the protrusions of the first and second selector bodies engage one of the plurality of locating slots to selectively fix the relative position of the moveable body to the fixed body.

9. The stock of claim 8, wherein the biasing device has a first end and a second end, wherein the first selector body includes an abutment surface opposite the engagement surface and the second selector body includes an abutment surface opposite the engagement surface, wherein the first selector body includes an orifice disposed in the abutment surface, wherein the orifice is shaped to receive the first end of the biasing device, wherein the second selector body includes an orifice disposed in the abutment surface, wherein the orifice is shaped to receive the second end of the biasing device.

10. The stock of claim 9, wherein the biasing device is a spring.

11. The stock of claim 9, wherein the biasing device is an elastomeric polymer.

12. The stock of claim 8, wherein the first selector body includes an abutment surface opposite the engagement surface and the second selector body includes an abutment surface opposite the engagement surface, wherein the abutment surfaces of the first and second selector bodies are stepped, wherein when the engagement surfaces are pressed, the stepped abutment surfaces are brought into abutment.

13. The stock of claim 8, wherein when the engagement surfaces are pressed, the one of the protrusions of the first and second selector bodies disengages from the one of the plurality of locating slots to permit the relative position of the moveable body to the fixed body to be changed.

14. The stock of claim 13, wherein when the engagement surfaces are pressed, the protrusions of the first and second selector bodies are fully disposed within the hole.

15. The stock of claim 8, wherein the hole is defined in the moveable body and the plurality of locating slots are defined in the fixed body.

16. The stock of claim 15, wherein the plurality of locating slots include a first and second array of locating slots disposed opposite each other about a sliding channel, wherein the sliding channel is sized to permit the moveable body to slide within it to change the relative position of the moveable body to the fixed body.

17. An adjustable stock for a firearm, comprising:

a fixed body attachable to the firearm;

a moveable body slideably connected to the fixed body, the moveable body including a butt of the stock;

a position selector disposed to selectively fix the relative position of the moveable body to the fixed body at a plurality of locations;

a position retention device supported by the moveable body provides a point of selective fixation between the fixed body and the moveable body, wherein the position retention device includes a locking surface that selectively abuts a surface of the fixed body to lock the moveable body to the fixed body, wherein the moveable body includes a retention aperture, wherein the position retention device includes a shaft extending through the retention aperture and a locking member comprising the locking surface attached to an end of the shaft;

a hole defined in one of the fixed body and the moveable body, the hole having a first side opening and a second side opening disposed opposite the first side opening;

a plurality of locating slots defined in the other of the fixed body and the moveable body; and

wherein the position selector includes;

a first selector body having a body portion shaped as a button having an engagement surface and a protrusion extending away from the body portion;

a second selector body having a body portion shaped as a button having an engagement surface and a protrusion extending away from the body portion; and

a biasing device disposed between the first and second selector bodies to bias the first and second selector bodies apart, wherein the position selector is disposed in the hole, wherein the engagement surface of the first selector body extends from the first side opening and the engagement surface of the second selector body extends from the second side opening, wherein one of the protrusions of the first and second selector bodies engage one of the plurality of locating slots to selectively fix the relative position of the moveable body to the fixed body,

wherein the first selector body includes an abutment surface opposite the engagement surface and the second selector body includes an abutment surface opposite the engagement surface, wherein the biasing device has a first end and a second end, wherein the first end abuts the first selector body and the second end abuts the second selector body, wherein the first selector body includes an orifice disposed in the abutment surface, wherein the orifice is shaped to receive the first end of the spring, wherein the second selector body includes an orifice disposed in the abutment surface, wherein the orifice is shaped to receive the second end of the biasing device.