| 摘要 |
A tensioning device (7) used for achieving mass-production interchangeability of the barrels for a shotgun with articulated barrels is positioned between the barrels (1) and the breech (2) of the gun and comprises a rod-shaped element (8) constituted by a fixed portion (11) and a movable portion (15) guided for moving on the fixed portion (11) and subject to the action of a powerful spring (16) which urges it against a tenon (5). Means (18, 19, 22) are provided for adjustably engaging the rod-shaped element (8) on the tenon (5). <IMAGE> |
