| 摘要 |
An adjustable means interconnecting the muzzle ends of barrels in an over-and-under firearm to adjust the distance between the muzzle ends of the barrels to alter the point of impact of projectile means discharged from the barrels. The adjustable means includes an elongated yoke affixed to the upper barrel extending downwardly with a slot for receiving the lower barrel. A screw means is provided for adjusting the position of the lower barrel within the vertical slot of the yoke.
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