Ten round magazine with fifteen round profile

A limited capacity firearm magazine for a firearm configured to receive a magazine having a capacity of a predetermined large number of rounds, said limited capacity magazine comprising:

• (a) an exterior shape acceptable and removable from said firearm;
• (b) a discharge opening;
• (c) two opposed side walls;
• (d) a follower having a bottom position wherein said follower is operable to urge said rounds toward said discharge opening;
• (e) a cartridge holding volume partially bounded by said opposed side walls, said discharge opening and said follower, when said follower is in said bottom position;
• (f) said two opposed side walls having longitudinal indentations projecting into said holding volume;
• (g) said indentations having lower portions extending upward from adjacent said follower, when said follower is in said bottom position, toward said discharge opening and extending along a substantial length of said cartridge holding volume;
• (h) said side walls having primary portions spaced a distance sufficient, in the absence of said lower portions of said indentations, for said holding volume to accept said predetermined large number of rounds;
• and
• (i) said lower portions of said indentations being sized and shaped to substantially reduce the number of rounds which can be inserted into said cartridge holding volume;
• (j) said lower portions of said indentations are spaced from one another at a substantially constant distance along substantially their entire length;
• (k) said indentations further comprise upper portions extending downward from said discharge opening to said lower portions;
• (l) said upper portions of said indentations are angled upward and inward toward one another;
• (m) said upper portions, at points adjacent said lower portions, are spaced at distances greater than said substantially constant distance between said lower portions, and, at points adjacent said discharge opening, are spaced at distances less than said substantially constant distance between said lower portions;
• (n) whereby said lower portions form a limited capacity storage section and said upper portions form a transition section adapted for the smooth transition of rounds to said discharge opening.