Cartridge magazine for firearms

Abstract

A cartridge magazine for firearms has an elongated channel to receive a plurality of cartridges. The cartridge magazine has a box forming a housing of the cartridge magazine, a spring operated follower for pressing the cartridges in the magazine to an upper position. In this position, the topmost cartridge is ready for feeding into a chamber of the firearm and in this position the topmost cartridge rests against a pair of retaining lips. The lips remain in a first position when the topmost cartridge is in the upper position and the lips are operatively displaceable to a second position wider than the first position.

Description

TECHNICAL FIELD OF THE INVENTION[0001]This invention relates to a detachable single column also known as single row cartridge magazine of a firearm.BACKGROUND OF THE INVENTION[0002]A single column cartridge magazine is a well-known type of cartridge magazine. There are several benefits for this particular cartridge magazine type. It is simple and reliable. The cartridge to be fed into the chamber is initially on the same vertical plane as the chamber, which means that the cartridge does not need to move sideways while feeding into the chamber. The single column magazine is also generally easier and cheaper to manufacture than a double column magazine. The width of a firearm having a double column magazine is greater than a firearm with a single column magazine. In some cases this width is a disadvantage, especially if a narrow receiver and stock is expected. Also the receiver construction is easier to design and manufacture when there is not a wide opening needed for cartridges to b...

AI Technical Summary

Benefits of technology

[0006]It is still another object of the present invention to provide an improved single column cartridge magazine which can also be loaded when attached to the firearm.

[0007]It is still another object of the present invention to provide an improved single column cartridge magazine which is capable of guiding the topmost cartridge into the chamber.

[0016]An improved single column cartridge magazine of the present invention optionally also comprises a cartridge guide. This cartridge guide has several functions. One main function of the cartridge guide is to guide the topmost cartridge into the chamber. There are beveled edges on the upper part of the cartridge guide so that the frusto-conical shoulder portion of the cartridge touches the beveled edge when the cartridge is pressed forward by the bolt and the cartridge is guided by these two elements into the chamber. This means that the bullet is not used as a guiding surface or element during the loading movement as it is used in conventional designs. This different guiding principle makes a significant difference. If the bullet is for some reason twisted from its original position during the loading, it may disturb the highly important accuracy of the firearm. Here the term twisted means that the center axis of the cartridge case and the bullet are no longer the same, i.e. coaxial. The cartridge guide together with the stiff but bendable retaining lips ensure a precise positioning of the topmost cartridge in its initial position at the cartridge magazine and through the feeding action until the rear end of the cartridge case loses contact with the retaining lips and beveled edge of the cartridge guide. Also, all the subsequent cartridges in the cartridge magazine remain in one precise position during the loading and also during the recoil. This precise positioning is one of the key elements in reliable cartridge feeding action.

Problems solved by technology

In some cases this width is a disadvantage, especially if a narrow receiver and stock is expected.

In a traditional version of a single column cartridge magazine this is not possible.

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