Ammunition magazine base pad retaining plate
An ammunition magazine base pad retaining plate is provided with a protrusion including a shaft portion, a flange portion having a lager cross sectional diameter than the shaft portion, and a longitudinal slot to allow lateral compression. When attached to a magazine base pad in a magazine assembly, the configuration of the base pad retaining plate eliminates the possibility that the base pad retaining plate will disengage from the base pad resulting in catastrophic disassembly of the ammunition magazine.
1. An apparatus comprising:
a base pad retaining plate configured to engage a magazine base pad and a magazine spring, the base pad retaining plate comprising at least one protrusion for engagement with at least one through-hole in the magazine base pad, the at least one protrusion comprising:
a shaft portion,
a flange portion having a cross sectional diameter larger than a cross sectional diameter of the shaft portion, and
a longitudinal slot along the longitudinal axis of the flange portion and at least a portion of the shaft portion; and
the magazine base pad configured for installation on an ammunition magazine housing, wherein the magazine base pad comprises:
the at least one through-hole,
a scalloped recess on the front edge of the magazine base pad,
a scalloped recess on each lateral side of the magazine base pad,
tapering lateral sides, wherein an angle between the bottom surface of the magazine base pad and at least a majority of the surface of each lateral side is between 75 and 85 degrees, and
dimples on the lower surface of the magazine base pad and configured to allow a user to identify a magazine.
2. A method of modifying an ammunition magazine for a firearm comprising:
installing a magazine base pad and a base pad retaining plate on an ammunition magazine housing;
wherein the magazine base pad is configured to engage the ammunition magazine housing and comprises at least one through-hole; and
wherein the base pad retaining plate is configured to engage at least the magazine base pad and an ammunition magazine spring, the base pad retaining plate comprising at least one protrusion for engagement with the at least one through-hole in the magazine base pad, the at least one protrusion comprising:
a shaft portion;
a flange portion having a cross sectional diameter larger than a cross sectional diameter of the shaft portion;
a longitudinal slot along the longitudinal axis of the flange portion and at least a portion of the shaft portion; and
wherein installing the magazine base pad on the ammunition magazine housing further comprises installing a magazine base pad comprising:
a scalloped recess on the front edge of the magazine base pad;
a scalloped recess on each lateral side of the magazine base pad;
a front edge existing at a distance of no more than about 0.440 inches from a front edge of the ammunition magazine housing when the magazine base pad is installed on the ammunition magazine housing;
tapering lateral sides, wherein an angle between the bottom surface of the magazine base pad and at least a majority of the surface of each lateral side is between 75 and 85 degrees; and
dimples on the lower surface of the magazine base pad and configured to allow a user to identify a magazine.