Magazine for semi-automatic and automatic firearm

Abstract

A firearm magazine includes a magazine body, with the magazine body having a width to accommodate a double stack of cartridges in a zigzag pattern. The firearm magazine also includes a spring coupled to a follower within the magazine body. The firearm magazine body also includes two feed lips coupled to the magazine body, where the two feed lips together hold a single cartridge in place in a center of the magazine body to allow a bolt to push the single cartridge out of the firearm magazine and into a chamber of a firearm.

1 . A firearm magazine, comprising:
 a magazine body, the magazine body having a width to accommodate a double stack of cartridges in a zigzag pattern;   a spring coupled to a follower within the magazine body; and   two feed lips coupled to the magazine body, wherein the two feed lips together hold a single cartridge in place in a center of the magazine body to allow a bolt to push the single cartridge out of the firearm magazine and into a chamber of a firearm,   wherein the width of the double stack of cartridges comprises less than 150% of a width of the single cartridge.   
     
     
         2 . The firearm magazine of  claim 1 , wherein every cartridge in the magazine body, except for the single cartridge held by the two feed lips, is configured in a double stack zigzag pattern within the magazine body. 
     
     
         3 . The firearm magazine of  claim 1 , wherein the magazine body has a straight profile. 
     
     
         4 . The firearm magazine of  claim 1 , wherein the magazine body has a curved profile. 
     
     
         5 . The firearm magazine of  claim 1 , wherein the magazine body increases in width over its length. 
     
     
         6 . The firearm magazine of  claim 1 , wherein the magazine body is comprised of metal. 
     
     
         7 . The firearm magazine of  claim 1 , wherein the magazine body is comprised of polymer. 
     
     
         8 . The firearm magazine of  claim 1 , the magazine having a constant width along a length thereof. 
     
     
         9 . The firearm magazine of  claim 1 , wherein the magazine body has a top portion with a first width to accommodate a narrow double stack of cartridges in a first zigzag pattern, and wherein the magazine body has a bottom portion with a second width greater than the first width, wherein the second width accommodates a wide double stack of cartridges in a second zigzag pattern. 
     
     
         10 . The firearm magazine of  claim 1 , wherein each cartridge in the firearm magazine touches two other cartridges, except for a top and a bottom cartridge, which each only touch one other cartridge. 
     
     
         11 . (canceled) 
     
     
         12 . A firearm magazine, comprising:
 a magazine body, wherein the magazine body has a top portion with a first width to accommodate a narrow double stack of cartridges in a first zigzag pattern, wherein the first width is less than 150% of a width of the single cartridge, and wherein the magazine body has a bottom portion with a second width greater than the first width, wherein the second width accommodates a wide double stack of cartridges in a second zigzag pattern;   a spring coupled to a follower within the magazine body; and   two feed lips coupled to the magazine body, wherein the two feed lips together hold a single cartridge in place in a center of the magazine body to allow a bolt to push the single cartridge out of the firearm magazine and into a chamber of a firearm.   
     
     
         13 . (canceled) 
     
     
         14 . The firearm magazine of  claim 12 , wherein the second width is greater than 180% of a width of the single cartridge. 
     
     
         15 . The firearm magazine of  claim 12 , wherein each cartridge in the top portion of the firearm magazine touches two other cartridges, except for a top cartridge, which only touches one other cartridge. 
     
     
         16 . The firearm magazine of  claim 12 , wherein each cartridge in the bottom portion of the firearm magazine touches two, three, or four other cartridges, except for a bottom cartridge which only touches one other cartridge. 
     
     
         17 . The firearm magazine of  claim 12 , wherein the magazine body has a straight profile. 
     
     
         18 . The firearm magazine of  claim 12 , wherein the magazine body has a curved profile. 
     
     
         19 . The firearm magazine of  claim 12 , wherein the magazine body is comprised of metal. 
     
     
         20 . The firearm magazine of  claim 12 , wherein the magazine body is comprised of polymer. 
     
     
         21 . A firearm magazine, comprising:
 a magazine body, the magazine body having a width to accommodate a double stack of cartridges in a zigzag pattern;   a spring coupled to a follower within the magazine body; and   two feed lips coupled to the magazine body, wherein the two feed lips together hold a single cartridge in place in a center of the magazine body to allow a bolt to push the single cartridge out of the firearm magazine and into a chamber of a firearm,   wherein the width of the double stack of cartridges comprises less than 150% of a width of the single cartridge,   wherein every cartridge in the magazine body, except for the single cartridge held by the two feed lips, is configured in the zigzag pattern and contained within the magazine body, and   wherein the magazine body has a straight profile or a curved profile.   
     
     
         22 . The firearm magazine of  claim 21 , wherein each cartridge in the firearm magazine touches two other cartridges, except for a top and a bottom cartridge, which each only touch one other cartridge.