IP Library Granted Patent US 12,209,838
Granted Patent B2
US 12,209,838 · App. 17/943,501 · Granted Jan 28, 2025

Magazine extension

Inventor: Benjamin Ni Ye (North Richland Hills, TX)
Assignee: Shadow Systems LLC
F41A9/71
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Quick Facts
Patent No.
US 12,209,838
App. No.
17/943,501
Granted
Jan 28, 2025
Kind
B2
Abstract

A magazine extension is provided. The magazine extension includes a baseplate structured to receive a lower open end of a magazine, the baseplate having a laterally extending through-bore; a side bracket structured to couple to the baseplate for securing the magazine, the side bracket having a laterally extending through-bore; and a locking pin insertable within both the through-bore of the baseplate and the through-bore of the side bracket to lock the side bracket to the baseplate.

Claims (25)

1. A magazine extension, comprising:

a baseplate structured to receive a lower open end of a magazine, the baseplate having a laterally extending through-bore;

a side bracket structured to couple to the baseplate for securing the magazine, the side bracket having a laterally extending through-bore; and

a locking pin insertable within both the through-bore of the baseplate and the through-bore of the side bracket to lock the side bracket to the baseplate.

2. The magazine extension of claim 1 , wherein the baseplate includes a securing slot sized to receive a rail of the magazine.

3. The magazine extension of claim 1 , wherein the baseplate includes a floor having an upper surface positioned to engage a magazine spring of the magazine.

4. The magazine extension of claim 1 , wherein the baseplate includes a post receptacle and the side bracket includes a post structured to be closely received within the post receptacle.

5. The magazine extension of claim 1 , wherein the locking pin includes a first portion having a first diameter, a second portion having a second diameter smaller than the first diameter, and a stopping surface at an interface between the first portion and the second portion.

6. The magazine extension of claim 5 , wherein the through-bore of the baseplate includes a first bore having a first diameter, a second bore having a second diameter smaller than the first diameter, and a pin stop at an interface between the first bore and the second bore.

7. The magazine extension of claim 4 , wherein the through-bore of the side-bracket is provided on the post of the side bracket.

8. The magazine extension of claim 7 , wherein the through-bore of the side bracket is aligned with the through-bore of the baseplate when the post is closely received within the post receptacle of the baseplate.

9. The magazine extension of claim 7 , wherein the through-bore of the side bracket is mis-aligned with the through-bore of the baseplate when the post is closely received within the post receptacle of the baseplate.

10. The magazine extension of claim 1 , wherein the through-bore of the side bracket includes a first bore having a first diameter, a second bore having a second diameter smaller than the first diameter, and a pin stop at an interface between the first bore and the second bore.

11. The magazine extension of claim 1 , wherein the side bracket includes a main body with an engagement end for engaging a proximal side of the magazine.

12. The magazine extension of claim 2 , wherein the side bracket includes a stopping end to close an open end of the securing slot.

13. A magazine extension, comprising:

a baseplate structured to receive a lower open end of a magazine, the baseplate having a proximal end, a distal end, a post receptacle at the proximal end, a laterally extending through-bore intersecting the post receptacle at the proximal end, and two securing slots sized to receive respective rails of the magazine, each of the securing slots having an open end;

a side bracket structured to couple to the baseplate for securing the magazine, the side bracket having a post structured to be closely received within the post receptacle of the baseplate, a laterally extending through-bore on the post, an engagement end for engaging a proximal side of the magazine, and two stopping ends to respectively close the open ends of the securing slots; and

a locking pin insertable within both the through-bore of the baseplate and the through-bore of the side bracket to lock the side bracket to the baseplate.

14. The magazine extension of claim 13 , wherein the baseplate includes a floor having an upper surface positioned to engage a magazine spring of the magazine.

15. The magazine extension of claim 13 , wherein the through-bore of the side bracket is aligned with the through-bore of the baseplate when the post is closely received within the post receptacle of the baseplate.

16. The magazine extension of claim 13 , wherein the through-bore of the side bracket is mis-aligned with the through-bore of the baseplate when the post is closely received within the post receptacle of the baseplate.

17. The magazine extension of claim 13 , wherein the locking pin includes a first portion having a first diameter, a second portion having a second diameter smaller than the first diameter, and a stopping surface at an interface between the first portion and the second portion.

18. The magazine extension of claim 13 , wherein the through-bore of the baseplate includes a first bore having a first diameter, a second bore having a second diameter smaller than the first diameter, and a pin stop at an interface between the first bore and the second bore.

19. The magazine extension of claim 13 , wherein the through-bore of the side bracket includes a first bore having a first diameter, a second bore having a second diameter smaller than the first diameter, and a pin stop at an interface between the first bore and the second bore.

Assignments (2)
SECURITY INTEREST Recorded Jan 12, 2026
From: SHADOW SYSTEMS LLC
To: PATHWARD, NATIONAL ASSOCIATION
Reel/Frame 073438/0357 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 9, 2024
From: YE, BENJAMIN NI
To: SHADOW SYSTEMS LLC
Reel/Frame 069526/0237 →