Modular stock for a firearm

Patent metadata

Field	Value
Publication number	US-9612084-B2
Application number	US-201615225512-A
Country	US
Kind code	B2
Filing date	Aug 1, 2016
Priority date	Mar 20, 2015
Publication date	Apr 4, 2017
Grant date	Apr 4, 2017

Abstract

This disclosure describes systems, methods, and apparatus for a barrel support for a for a firearm stock. In one example, the barrel support has an elongate frame with a longitudinal axis extending between a fore portion and an aft portion, a first concave barrel recess shaped to support a first barrel, the first concave barrel recess positioned on a first side of the elongate frame. The exemplary barrel support also has a second concave barrel recess shaped to support a second barrel, the second concave barrel recess positioned on a second side of the elongate frame. In this example the first barrel is a tapered barrel, and the second barrel is a straight barrel.

First claim

What is claimed is:

1. A barrel tensioning kit for a firearm, comprising:
(a) a first support frame having a first barrel support surface on a first side, the first barrel support surface having a first radius of curvature and configured to engage a first firearm barrel, the first support frame further having at least one of a first support leg or a second barrel support surface on a second side opposing the first side; and
(b) an adjustment mechanism adjacent the first support frame, the adjustment mechanism movable between and including a first position and a second position and configured to engage a firearm component to move the first support frame between and including a first position and a second position relative to the firearm component.

2. The kit of claim 1 , wherein:
the first support frame comprises the first support leg; and
the kit comprises a second support frame comprising the second barrel support surface and a second support leg opposing the second barrel support surface.

3. A firearm, comprising:
a first barrel;
a forend, at least a portion of the forend positioned below the barrel; and
a barrel tensioning kit, at least a portion of the barrel tensioning kit positioned between the barrel and the forend, the barrel tensioning kit comprising:

(a) a first support frame having a first barrel support surface on a first side, the first barrel support surface having a first radius of curvature and configured to engage the first barrel, the first support frame further having at least one of a first support leg or a second barrel support surface on a second side opposing the first side; and
(b) an adjustment mechanism adjacent the first support frame, the adjustment mechanism movable between a first position and a second position and configured to engage the forend to move the first support frame between and including a first position and a second position relative to the forend; wherein
when in the first position the first support frame applies a first tensioning force to the first barrel; and
when in the second position the first support frame applies a second tensioning force to the first barrel, the second tensioning force different from the first tensioning force.

4. The firearm of claim 3 , wherein:
the firearm comprises a second barrel interchangeable with the first barrel, wherein one of the first barrel or the second barrel is a straight barrel and the other one of the first barrel or the second barrel is a tapered barrel.

5. The firearm of claim 4 , wherein:
the first support frame has the first support leg; and
the barrel tensioning kit further comprises a second support frame, the second support frame comprising the second barrel support surface and a support leg opposing the second support surface.

6. The firearm of claim 5 , wherein:
the second support frame has a first position and a second position and is configured to move between and including the first and second positions, wherein in the first position the second support frame is substantially flush with or recessed in the second concave barrel recess, and wherein in the second position the second support frame protrudes into the second concave barrel recess.

7. The firearm of claim 5 , wherein:
the second support frame is interchangeable with the first support frame, the second support frame configured to engage the second barrel.

8. The firearm of claim 3 , wherein:
the first support frame has a second barrel support surface on a second side opposing the first side.

9. The firearm of claim 8 , wherein:
the firearm comprises a second barrel interchangeable with the first barrel, wherein one of the first barrel or the second barrel is a straight barrel and the other one of the first barrel or the second barrel is a tapered barrel.

10. The firearm of claim 9 , wherein:
the first support frame is reversible;
one of the first barrel support surface or the second barrel support surface is configured to engage the first barrel; and
the other one of the first barrel support surface or the second barrel support surface is configured to engage the second barrel.

11. The firearm of claim 3 , wherein:
the adjustment mechanism comprises a cammed mechanism to move the first support frame between and including the first position and the second position.

12. The firearm of claim 3 , wherein:
the adjustment mechanism is threadingly engaged with one of a component of the firearm or the first support frame.

13. The firearm of claim 3 , wherein:
the adjustment mechanism is threadingly engaged with one of a component of the firearm, whereby rotation of the adjustment mechanism induces a translation of the first support frame relative to the component of the firearm.

14. The firearm of claim 13 , wherein:
the component of the firearm is a forend.

15. The firearm of claim 13 , wherein:
the component of the firearm is a selectable barrel support.

16. The firearm of claim 3 , wherein:
the first support frame is infinitely movable between and including the first position and the second position.

17. The firearm of claim 3 , wherein:
the barrel tensioning kit is configured to dampen vibration of the first barrel.

18. The firearm of claim 3 , wherein:
the first barrel support surface is a curved barrel support surface.

Assignees

• Magpul Ind Corp

Inventors

• Barfoot Grady
• Sessions Turner
• Bennett William Bradley
• Liptak Duane
• Mayberry Michael T

Classifications

• F41C23/20

  Butts; Butt plates; Mountings therefor (F41C23/08, F41C23/10, {F41C23/14} take precedence) · CPC title

• F41A21/48

  Barrel mounting means, e.g. releasable mountings for replaceable barrels · CPC title

• F41A11/02

  Modular concepts, e.g. weapon-family concepts · CPC title

• F41C23/16 Primary

  Forestocks; Handgrips; Hand guards (pump-action guns F41C7/02) · CPC title