| 摘要 |
A semi-automatic weapon having a magazine well in the receiver section thereof. The well has opposed side walls and end walls to describe a box like enclosure for receiving a cartridge magazine. A bottom wall is also provided which guides the magazine vertically into the well. An opening is formed in one of the side walls that has a geometry that limits the size and shape and thus the capacity of a magazine that can be inserted through the opening into the well.
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