| 摘要 |
The shoulder butt is for an automatic pistol and is removable. The butt comprises the main part, heel, bracket, and magazine housing. These are in sheet metal or any other material e.g. plastics of sufficient strength. - The parts fold together round a large-capacity magazine, whose part extending beyond the grip fits in the magazine housing. Two bending springs and two stops unfold the butt and lock it in the open position.
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