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Ammunition magazine

a technology of ammunition magazines and magazines, applied in the field of ammunition magazines, can solve the problem of inherently uniform geometry of magazines, and achieve the effect of stable follower and follower path

Active Publication Date: 2022-06-14
MAGPUL INDUSTRIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides an improved ammunition magazine that is compatible with existing weapon platforms. It also has a more stable follower and follower path, resulting in more reliable and consistent performance.

Problems solved by technology

As the follower must move, there is room for the follower in all the known prior art magazines to move axially, or “wobble” and possibly jam.
This is notorious in the AR15 / M16 magazine style as the geometry of the magazine is inherently not uniform.

Method used

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Examples

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Embodiment Construction

[0056]With reference now to the drawings, the preferred embodiment of the ammunition magazine is herein described. It should be noted that the articles “a”, “an” and “the”, as used in this specification, include plural referents unless the content clearly dictates otherwise.

[0057]With reference to FIG. 1, the magazine 1 generally comprises a body 10 having a floor end 13 and a feed end 17. The magazine 1, can have fore and aft sides and two lateral sides longer than the fore and aft sides. Feed lips 21 are provided at the feed end 17 to interface with a weapon and to guide cartridges into the firing chamber of said weapon. The floor end is capped with a floor plate 20 which is secured by a lock plate 25. A spring 35 rests against the lock plate 25, centered by walls 24 (see FIG. 6a), and floor plate 20 combination and provides tension to bias the follower 30 and the floor plate 20 so that the follower 30 will progress up the magazine body 10 as ammunition is used. Floor plate 20 sli...

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PUM

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Abstract

The present invention is an ammunition magazine, preferably made of a reinforced polymer, utilizing a structurally enhancing ridge, angular guide rails and a follower made to interface with said guide rails to reduce wobble. The preferred embodiment also features a protective cover that distributes forces from the spring to more structurally sound areas of the magazine, thus reducing feed end splay, and an ammunition indication system comprised of at least one window and a noticeable marker on the follower spring. The follower and magazine casing are also designed to interface to prevent the follower from popping out of the feed end and the floor plate of the magazine utilizes a locking plate and sliding relationship between the floor plate, locking plate and magazine to secure the floor plate onto the magazine casing. The cover features built in tools for, among other things, unloading and disassembling the magazine.

Description

CLAIM OF PRIORITY UNDER 35 U.S.C. §120[0001]The present Application for Patent is a reissue of U.S. patent application Ser. No. 15 / 661,620 entitled “Ammunition Magazine” filed Jul. 27, 2017 and issued on Sep. 11, 2018 as U.S. Pat. No. 10,072,903, which is a Continuation of U.S. patent application Ser. No. 14 / 632,804 entitled “Ammunition Magazine” filed Feb. 26, 2015 and issued on Aug. 29, 2017 as U.S. Pat. No. 9,746,264, which is a Continuation of U.S. patent application Ser. No. 14 / 461,229 entitled “Ammunition Magazine” filed Aug. 15, 2014 and issued on Mar. 31, 2015 as U.S. Pat. No. 8,991,086, which is a Continuation-in-Part of patent application Ser. No. 14 / 098,467 entitled “Ammunition Magazine” filed Dec. 5, 2013 and issued on Sep. 23, 2014 as U.S. Pat. No. 8,839,543, which is a Continuation of patent application Ser. No. 13 / 307,431 entitled “Ammunition Magazine” filed Nov. 30, 2011 and issued on Jan. 28, 2014 as U.S. Pat. No. 8,635,796, which is a Continuation of prior filed U....

Claims

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Application Information

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IPC IPC(8): F41A9/65F41A9/70F41A9/62F41A9/67F41A9/69F41A9/83
CPCF41A9/70F41A9/62F41A9/65F41A9/67F41A9/69F41A9/83
Inventor FITZPATRICK, RICHARD M.MAYBERRY, MICHAEL T.NAKAYAMA, BRIAN L.BURT, ERIC C.
Owner MAGPUL INDUSTRIES
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