| 摘要 |
A mechanism, which may be integral with the gun parts and which permits the butt of a shouldered firearm, that either shoots shot or projectiles, to be pivoted about an axis, or which is integral to the gun parts whereby the stock butt is pivoted by design and fixed in place, or which may be manufactured as an after-market item, and which permits the butt of a shoulder-fired gun to be pivoted about a central point. This final design only applies to any shouldered firearm where firing mechanism, barrel, and sighting device are elevated above stock butt. |
