Patent ID: 7937872

Claim:
A detachable plastic magazine for use with firearms, the detachable plastic magazine comprising: a plastic housing having a substantially rectangular portion to be received by a firearm, the plastic housing comprising two sidewalls, a front wall, and a rear wall along which cartridges are to be moved during a reloading of a firearm, the two sidewalls, the front wall, the rear wall, and a bottom define an internal chamber to receive cartridges for firing by the firearm; a first rib formed on an inside of a first of the two sidewalls, wherein the first rib is proximate the front wall and substantially parallel to the front wall; a second rib formed on an inside of a second of the two sidewalls, wherein the second rib is proximate and substantially parallel to the front wall, wherein the first rib and the second rib are each substantially a same distance from the front wall; and a metallic reinforcement sized to cover at least a portion of the inside of the front wall, the metallic reinforcement being positioned to face tips of cartridges to be positioned within the internal chamber, wherein the metallic reinforcement is substantially planar and includes a lip disposed thereon that overhangs a top portion of the front wall, the metallic reinforcement further including a clip formed therein, the clip engages a recess on the inside of the front wall to retain the metallic reinforcement with respect to the plastic housing.