IP Library › Granted Patent US 10,641,571
Granted Patent B2
US 10,641,571 · App. 16/297,713 · Granted May 5, 2020

Apparatus and methods for preventing the rapid reloading of a semi-automatic firearm

Inventors: Dean Francis Quinn (Palo Alto, CA); Daniel Claude Watt (San Jose, CA)
F41A17/38
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Quick Facts
Patent No.
US 10,641,571
App. No.
16/297,713
Granted
May 5, 2020
Kind
B2
Abstract

A method of converting a semi-automatic firearm with a readily detachable firearm magazine into a firearm having a fixed firearm magazine is described. The method comprises removal of a magazine release button and installation of a retaining pin that secures a magazine lock in place. Significant firearm disassembly is required just in order to reload the magazine after conversion. Also, the firearm magazine cannot be removed from the firearm without using tools to remove the retaining device therefore preventing any kind of rapid magazine switching. The retaining device is inaccessible without at least partially disassembling the firearm upper assembly from the firearm lower assembly. This method eliminates quick magazine release buttons or quick release mechanisms. A method of making such a semi-automatic firearm is described. A conversion kit is also described.

Claims (30)

1. A method of converting a semi-automatic firearm with a readily detachable firearm magazine into a firearm having a fixed firearm magazine, comprising:

(a) providing a semi-automatic firearm having a firearm ripper assembly and a firearm lower assembly, the firearm lower assembly having a top surface and a firearm magazine container for holding a firearm magazine;

(b) creating a hole in the top surface of the firearm lower assembly to accommodate a retaining device that perpendicularly or near perpendicularly engages with and secures a magazine lock;

(c) inserting the firearm magazine into the firearm magazine container;

(d) inserting the firearm magazine lock; and,

(e) fixing the firearm magazine in place by inserting the retaining device into the hole until it engages with and secures the magazine lock, wherein the fixed magazine cannot be removed without disassembly of the semi-automatic firearm by at least partial separation of the firearm upper assembly from the firearm lower assembly and without disengaging the retaining device from the magazine lock.

2. The method of claim 1 , wherein an optional drill guide template is used to facilitate creating or drilling the hole in the firearm lower assembly.

3. The method of claim 1 , wherein the fixed firearm magazine has a maximum capacity of between 1 to 100 rounds of ammunition.

4. The method of claim 1 , wherein the fixed firearm magazine has a maximum capacity of between 1 to 10 rounds of ammunition.

5. The method of claim 1 , wherein the firearm apparatus is a semi-automatic rifle.

6. The method of claim 5 , wherein the firearm apparatus is an AR-15 or M-16 semi-automatic rifle.

7. The method of claim 1 , wherein the retaining device further comprises, a retaining screw or a retaining pin.

8. The method of claim 7 , wherein the retaining device is glued in place.

9. The method of claim 1 , wherein the firearm lower assembly is made from metal or from an otherwise resilient material or is made from a mixture of metal and an otherwise resilient material.

10. The method of claim 1 , wherein the magazine lock has a partially flattened spindle that engages with the retaining device.

11. The method of claim 1 , wherein the magazine lock has a magazine lock hole or dimple that engages with the retaining device.

12. The method of claim 1 , wherein the retaining device has a pointed lower end to engage with the magazine lock hole.

13. The method of claim 1 , wherein a magazine position button resident in the firearm lower assembly is replaced with a dummy or non-active magazine position button.

14. A kit for the conversion of a firearm with a readily detachable firearm magazine into a firearm with a fixed firearm magazine, comprising:

(a) a retaining device; and,

(b) a magazine lock;

wherein the retaining device is inaccessible without at least partial removal of the firearm upper assembly from the firearm lower assembly.

15. The kit of claim 14 , wherein the kit contains a modified magazine position button, the modified magazine button having a magazine button hole configured to allow the retaining device to pass through.

16. The kit of claim 14 , wherein the kit contains a modified magazine lock, wherein a shaft or spindle of the magazine lock has at least one of, a flattened-out portion to engage with the retaining device, a magazine lock hole or dimple to facilitate engagement with the retaining device.

17. A method of making a semi-automatic firearm having a fixed firearm magazine, comprising:

(a) providing a firearm having a firearm upper assembly and a firearm lower assembly, the firearm lower assembly having a top face, a firearm magazine container for holding a fixed firearm magazine, and a magazine lock;

(b) creating a hole in the top face of the firearm lower assembly wherein the hole is perpendicular or near perpendicular to the magazine lock; and,

(c) inserting a retaining device that perpendicularly or near perpendicularly engages with and secures the magazine lock;

wherein the fixed magazine cannot be removed without disassembly of the semi-automatic firearm by at least partial separation of the firearm upper assembly from the firearm lower assembly and without disengaging the retaining device from the magazine lock.

18. The method of claim 17 , wherein the maximum capacity of the fixed firearm magazine is between 1 to 10 rounds of ammunition.

Continuity (2)
Division 15607400 · May 26, 2017
Related Publication 20190212089A1 · Jul 11, 2019
Cited By (3)
US 12,241,703 US 12,305,943 US 12,710,241