| 摘要 |
A catcher, in combination with a firearm having an ejection port, for receiving and retaining expended magnetically attracted shell casings through the ejection port as the firearm is discharged. The catcher includes a hollow housing having a plurality of rigid walls, and retainers. One of the walls has an opening in communication with the ejection port when the catcher is mounted to the firearm for receiving the shell casings. At least one of the other walls includes a plurality of deflectors and each of the deflectors has a front face that is slanted away from the opening such that the deflectors are capable of deflecting the shell casings away from the opening and a rear face that is perpendicular to the planar surface of the housing or slanted away from the opening. At least one of the deflectors, alone or in combination with one or more other of the deflectors and a respective wall, provide a void and an aperture configured as an acoustic tuner structure tuned to provide reduction of noise emitted at the ejection port. The retainers are disposed at the rear face of the deflectors and are capable of retaining the shell casings when the catcher is in any position. The retainers comprise a permanent magnetic material.
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