| 摘要 |
The invention provides a barrel locking device for automatic pistols, and a sub-caliber conversion therefor. The essential elements of the locking device are the barrel, the aligning cheeks at the rear end of the barrel, the barrel extension member, a link pivotally connected to such barrel extension member and having a hole therein, a slide-stop having a pivot pin for engagement in a transverse through hole in the piston receiver and in the hole in the link, and a barrel locking screw which engages in a threaded hole in the front face of the extension member. Upon tightening of the barrel locking screw the link is rotated forwardly and pulls the barrel and slide into intimate contact with the receiver by engagement of the barrel cheeks with the upper surface of the receiver.
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