| 摘要 |
<p>Device and method for correcting the position of aiming elements of an arm, specially a sight, with respect to the bore axis of said arm, comprised of a hollow tube having an appropriate length so that it can be introduced in the arm, in place of the bolt of the latter, the tube presenting a truncated end so as to be adapted to the calibre in the mouth of the chamber, and provided externally with a bush having an outside diameter corresponding to the entrance point of the bolt, so that it is centered. Said device is provided internally with a laser beam emitting system with supplying and switching means, said beams going through the truncated area appropriately bored as well as optionally, another stepped surface adapted to the firing mouth and also axially bored so that the beam materialises, on a target placed according to adequate distance tables, the impact point by means of a light point and, with respect to the latter, correcting the sight by acting on the corresponding sight adjusting mechanisms.</p> |
