Adjustable Length Stock Assembly and Buffer Catch for a Firearm

• US 20170328672A1
• Filed: 05/10/2017
• Published: 11/16/2017
• Est. Priority Date: 05/10/2016
• Status: Active Grant

• Current Assignee: Troy Industries Incorporated
• Original Assignee: Troy Industries Incorporated
• Inventors: Hewes, David A., Gray, Thomas A., Troy, JR., Stephen P.
• Granted Patent: US 10,088,268 B2
• Time in Patent Office: Days
• CPC Class Codes: F41A 3/66 Breech housings or frames; Receivers
• CPC Class Codes: F41A 3/84 mounted within the gun stock
• CPC Class Codes: F41C 23/14 Adjustable stock or stock parts, i.e. adaptable to personal requirements, e.g. length, pitch, cast or drop

Abstract

A stock assembly for a firearm, the stock assembly comprising a buffer catch comprising a movable buffer catch body; a receiver extension comprising a buffer tube; the buffer tube comprising a buffer tube body and a tubular passage within the buffer tube body; the buffer tube body comprising a buffer catch receptacle extending through a wall of the buffer tube body extending along a longitudinal axis of the buffer tube; the buffer catch receptacle configured to receive the buffer catch body therein; the buffer catch body configured to move within the buffer catch receptacle from a home position to a depressed position; and, in the depressed position, the buffer catch body blocks at least a portion of the tubular passage of the buffer tube.

Claims

1. A stock assembly for a firearm, the stock assembly comprising:

a buffer catch comprising a movable buffer catch body;

a receiver extension comprising a buffer tube;

the buffer tube comprising a buffer tube body and a tubular passage within the buffer tube body;

the buffer tube body comprising a buffer catch receptacle extending through a wall of the buffer tube body extending along a longitudinal axis of the buffer tube;

the buffer catch receptacle configured to receive the buffer catch body therein;

the buffer catch body configured to move within the buffer catch receptacle from a home position to a depressed position; and

in the depressed position, the buffer catch body blocks at least a portion of the tubular passage of the buffer tube.

2. The stock assembly of claim 1, further comprising:

a buffer configured to move within the tubular passage of the buffer tube; and

the buffer comprises a front section configured to reside within a bolt carrier of the firearm.

3. The stock assembly of claim 1, further comprising:

a buffer configured to move within the tubular passage of the buffer tube; and

the buffer comprises a front section, an intermediate section and a rear section;

the front section having a front section diameter;

the intermediate section having an intermediate section diameter;

the rear section having a rear section diameter;

the intermediate section diameter larger than the rear section diameter; and

the rear section diameter larger than the front section diameter.

4. The stock assembly of claim 1, further comprising:

a buffer configured to move within the tubular passage of the buffer tube;

the buffer comprises a front section, an intermediate section and a rear section; and

the intermediate section providing an annular shoulder having a front face and a rear face.

5. The stock assembly of claim 4, wherein:

the front face of the annular shoulder of the buffer has an annular recess;

the buffer catch body has a rear face configured to engage with the front face of the annular shoulder of the buffer;

the rear face of the buffer catch body has a protrusion; and

in the depressed position, the annular recess of the buffer is configured to receive the protrusion of the buffer catch body.

6. The stock assembly of claim 1, wherein:

the buffer catch body is configured to move inward within the buffer catch receptacle from the home position to the depressed position, and vice-versa.

7. The stock assembly of claim 1, further comprising:

a biasing member configured to bias depressing the buffer catch body from the home position to the depressed position.

8. The stock assembly of claim 1, further comprising:

a retaining member configured to retain the buffer catch body in the buffer catch receptacle.

9. The stock assembly of claim 1, wherein:

the stock assembly is configured to be installed on an M/16 AR-15 pattern firearm.

10. A stock assembly for a firearm, the stock assembly comprising:

a first guide rod and a second guide rod, each of the first guide rod and the second guide rod including a plurality of length adjustment recesses disposed in spaced relationship along a length of the guide rod;

a guide rod latch comprising a movable guide rod latch body having first guide rod tubular passage and a second guide rod tubular passage;

a receiver extension comprising a buffer tube, a first guide rod support and a second guide rod support;

the buffer tube, the first guide rod support and the second guide rod support each extending along a longitudinal axis of the receiver extension;

the first guide rod support and the second guide rod support disposed lateral of a longitudinal length of the buffer tube;

each of the first guide rod support and second guide rod support comprising a front guide rod support and a rear guide rod support, the front guide rod support and the rear guide rod support each longitudinally spaced from one another along the longitudinal axis of the receiver extension;

the guide rod latch body disposed between the front guide rod support and a rear guide rod support of each of the first guide rod support and the second guide rod support;

the front guide rod support and a rear guide rod support of each of the first guide rod support and the second guide rod support each including a tubular passage;

the first guide rod extending through the tubular passage of the front guide rod support and a rear guide rod support of the first guide rod support and the first guide rod tubular passage of the guide rod latch body;

the second guide rod extending through the tubular passage of the front guide rod support and a rear guide rod support of the second guide rod support and the second guide rod tubular passage of the guide rod latch body;

the guide rod latch body configured to move from a home position to a depressed position;

in the home position, the guide rod latch body occupies one of the length adjustment recesses of the plurality of length adjustment recesses of each of the first guide rod and the second guide rod; and

in the depressed position, the guide rod latch body is removed from occupying the length adjustment recesses of the plurality of length adjustment recesses of each of the first guide rod and the second guide rod.

11. The stock assembly of claim 10, wherein:

the first guide rod tubular passage and the second guide rod tubular passage of the guide rod latch body each include a protrusion; and

in the home position, each of the protrusions of guide rod latch body occupies one of the length adjustment recesses of the plurality of length adjustment recesses of each of the first guide rod and the second guide rod.

12. The stock assembly of claim 11, wherein:

the protrusion of each of the first guide rod tubular passage and the second guide rod tubular passage of the guide rod latch body is a rib.

13. The stock assembly of claim 12, wherein:

the rib protrusion of each of the first guide rod tubular passage and the second guide rod tubular passage of the guide rod latch body has an arcuate leading edge and/or leading surface.

14. The stock assembly of claim 10, wherein:

the plurality of length adjustment recesses disposed in spaced relationship along the length of each guide rod are each formed as an arcuate notch.

15. The stock assembly of claim 10, wherein:

the plurality of arcuate notches disposed in spaced relationship along the length of each guide rod each have an arcuate bottom.

16. The stock assembly of claim 10, further comprising:

a biasing member configured to bias depressing the guide rod latch body from the home position to the depressed position.

17. The stock assembly of claim 10, further comprising:

a stock; and

the first guide rod and the second guide rod are each attached to the stock.

18. The stock assembly of claim 10, wherein:

the receiver extension comprising the buffer tube, the first guide rod support and the second guide rod support is formed as a one-piece structure.

19. The stock assembly of claim 10, wherein:

the stock assembly is configured to be installed on an M/16 AR-15 pattern firearm.