Patent ID: 8943727
Filing Date: 2015-02-03
Classification: F41A

Abstract:
1. A magazine for a firearm comprising: a first wall; a second wall coupled to the first wall to define an enclosure to receive ammunition cartridges and an elongated cartridge exit opening comprising a first opening portion, a second opening portion and a transition opening portion; a curved first projection extending from a first portion of the first wall and including a first edge substantially parallel to the first wall, a first end of the first projection being adjacent an end of the first wall, the first projection having a first angled surface opposite the first end and having a first angled edge oriented at an acute angle to said first edge; a curved second projection extending from a second portion of the second wall and including a second edge substantially parallel to the second wall, a second end of the second projection being adjacent the first end, the second projection having a second angled surface arranged opposite the first angled surface and having a second angled edge oriented at an acute angle to said second edge; the first opening portion defined by said first edge and said second edge; the second opening portion defined by the first wall and the second wall, the second opening portion being larger than the first opening portion; and the transition opening portion defined by the first angled edge and the second angled edge, said transition opening gradually transitioning from a narrow gap to a wider gap between the first opening portion and the second opening portion.