| 摘要 |
A device for retaining cartridges in a tubular magazine of a semi-automatic shotgun when the cartridge in the firing chamber is being replaced, comprising a spring-loaded catch lever which is pivoted to the gun about a transverse axis, so as to be angularly displaceable between an inoperative position allowing the discharge of cartridges from the magazine, and an operative position blocking the discharge of cartridges from the magazine. The lever is displaced manually into its operative position and is held in this position by the action of the magazine spring until the gun is fired, whereupon the recoil causes the automatic release of the lever to its inoperative position. |
