"This system uses a recoil-reducing countermass mechanism with two operating rods that move in opposite directions, thereby providing "balance"."
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![](https://i.ytimg.com/vi/FFlTDfLmwkQ/maxresdefault.jpg)
"This system uses a recoil-reducing countermass mechanism with two operating rods that move in opposite directions, thereby providing "balance"."
[ Ссылка ]
video source: [ Ссылка ]