Adjustable length stock assembly and buffer catch for a firearm

• US 10,088,268 B2
• Filed: 05/10/2017
• Issued: 10/02/2018
• 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.
• Primary Examiner(s): Tillman, Jr., Reginald S
• Application Number:
  US15/592,131
• Publication Number:
  US 20170328672A1
• Time in Patent Office: 510 Days
• Field of Search: 42 7101, 42 72, 42 73, 42 106, 89198
• 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;

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

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

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

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

2. The stock assembly of claim 1, wherein:

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

3. The stock assembly of claim 1, wherein:

the front section of the buffer has a front section diameter;

the intermediate section of the buffer has an intermediate section diameter;

the rear section of the buffer has a rear section diameter;

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

the rear section diameter is larger than the front section diameter.

4. The stock assembly of claim 1, 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.

5. 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.

6. 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.

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

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

8. The stock assembly of claim 1, wherein:

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

9. 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;

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

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;

the front section of the buffer having a front section diameter;

the intermediate section of the buffer having an intermediate section diameter;

the rear section of the buffer 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.

10. The stock assembly of claim 9, wherein:

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

11. The stock assembly of claim 9, wherein:

the intermediate section of the buffer provides an annular shoulder having a front face and a rear face.

12. The stock assembly of claim 11, 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.

13. The stock assembly of claim 9, 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.

14. The stock assembly of claim 9, further comprising:

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

15. The stock assembly of claim 9, further comprising:

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

16. The stock assembly of claim 9, wherein:

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