IP Library Granted Patent US 12,332,013
Granted Patent B2
US 12,332,013 · App. 18/367,624 · Granted Jun 17, 2025

Firearm with dual feed magazine

Inventor: Jason Kiyoshi Brown (Chantilly, VA)
Assignee: XCAL IP LLC
F41A9/70
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Quick Facts
Patent No.
US 12,332,013
App. No.
18/367,624
Granted
Jun 17, 2025
Kind
B2
Abstract

A firearm with dual feed magazine has a frame defining a magazine well and defining a forward and rearward direction, a magazine configured to be received in the magazine well in a retained position, the magazine including a tubular body having an upper end and an opposed lower end, the tubular body defining adjacent first and second elongated passages, a first spring and first follower received in the first elongated passage, a second spring and second follower received in the second elongated passage, the first elongated passage configured to receive a first stack of ammunition, and the second elongated passage configured to receive a second stack of ammunition. The tubular body may include a divider between the first and second elongated passages and is configured to separate the first stack of ammunition from the second stack of ammunition. The divider may be a flat wall.

Claims (66)

1. A firearm comprising:

a frame defining a magazine well;

the frame defining a longitudinal axis defining a forward and rearward direction along the longitudinal axis;

a magazine configured to be received in the magazine well in a retained position;

the magazine including a tubular body having an upper end and an opposed lower end;

the tubular body defining adjacent first and second elongated passages;

the first elongated passage being forward of the second elongated passage;

a first spring and first follower received in the first elongated passage;

a second spring and second follower received in the second elongated passage;

the first elongated passage configured to receive a first stack of ammunition; and

the second elongated passage configured to receive a second stack of ammunition.

2. The firearm of claim 1 wherein the tubular body includes a divider between the first and second elongated passages and is configured to separate the first stack of ammunition from the second stack of ammunition.

3. The firearm of claim 2 wherein the divider is a flat wall.

4. The firearm of claim 2 wherein the tubular body has opposed major sidewalls, and where the divider extends from one major sidewall to the other major sidewall.

5. A firearm comprising:

a frame defining a magazine well and defining a forward and rearward direction;

a magazine configured to be received in the magazine well in a retained position;

the magazine including a tubular body having an upper end and an opposed lower end;

the tubular body defining adjacent first and second elongated passages,

a first spring and first follower received in the first elongated passage;

a second spring and second follower received in the second elongated passage;

the first elongated passage configured to receive a first stack of ammunition having case heads facing the second passage;

the second elongated passage configured to receive a second stack of ammunition having case heads facing the first passage; and

wherein the tubular body includes a divider between the first and second elongated passages and is configured to separate the first stack of ammunition from the second stack of ammunition with case heads abutting the divider.

6. The firearm of claim 1 wherein the upper end of the tubular body includes feed lips extending above each of the first and second elongated passages.

7. A firearm comprising:

a frame defining a magazine well and defining a forward and reward direction;

a magazine configured to be received be magazine well in a retained position;

the magazine including a tubular body having an upper end and an opposed lower end;

the tubular body adjacent first and second elongated passages,

a first spring and first follower received in the first elongated passage;

a second spring and second follower received in the second elongated passage;

the first elongated passage configured to receive a first stack of ammunition;

the second elongated passage configured to receive a second stack of ammunition, and

wherein the first elongated passage is configured to retain the first stack of ammunition with a bullet nose of each member of the first stack of ammunition facing away from the second elongated passage.

8. The firearm of claim 7 wherein the second elongated passage is configured to retain the second stack of ammunition with a bullet nose of each member of the second stack of ammunition facing away from the first elongated passage.

9. A firearm comprising:

a frame defining a magazine well and defining a forward and rearward direction;

a magazine configured to be received in the magazine well in a retained position;

the magazine including a tubular body having an upper end and an opposed lower end;

the tubular body defining adjacent first and second elongated passages;

a first spring and first follower received in the first elongated passage;

a second spring and second follower received in the second elongated passage; and

the first elongated passage configured to receive a first stack of ammunition having bullet noses facing away from the second passage and the second elongated passage is configured to receive a second stack of ammunition having noses facing away from the first passage such that the magazine is configured to receive the first stack of ammunition and the second stack of ammunition with bullet noses facing in opposite directions.

10. A firearm comprising:

a frame defining a magazine well and defining a forward and rearward direction;

a magazine configured to be received in the magazine well in a retained position;

the magazine including a tubular body having an upper end and an opposed lower end;

the tubular body defining adjacent first and second elongated passages;

a first spring and first follower received in the first elongated passage;

a second spring and second follower received in the second elongated passage;

the first elongated passage configured to receive a first stack of ammunition;

the second elongated passage configured to receive a second stack of ammunition;

wherein the frame includes a depressor fixed to the frame and overlaying a rear portion of the magazine well.

11. The firearm of claim 10 wherein the depressor is configured to depress one of the first and second ammunition stacks when the magazine is in the retained position.

12. The firearm of claim 10 wherein the frame defines an upper magazine well surface, and wherein the depressor extends from a rear portion of the upper magazine well surface.

13. A firearm comprising:

a frame defining a magazine well and defining a forward and rearward direction;

a magazine configured to be received in the magazine well in a retained position;

the magazine including a tubular body having an upper end and an opposed lower end;

the tubular body defining adjacent first and second elongated passages;

a first spring and first follower received in the first elongated passage;

a second spring and second follower received in the second elongated passage;

the first elongated passage configured to receive a first stack of ammunition;

the second elongated passage configured to receive a second stack of ammunition; and

including a bolt operable to reciprocate in the frame and when the magazine is in the retained position with the first elongated passage forward of the second elongated passage, to strip a top cartridge from the first stack of ammunition without contacting the second stack of ammunition.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 13, 2023
From: BROWN, JASON KIYOSHI
To: XCAL IP LLC
Reel/Frame 064888/0313 →
Continuity (2)
Provisional Application 63462813 · Apr 28, 2023
Related Publication 20240361095A1 · Oct 31, 2024
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