Patent ID: 6839999

Claim:
Interchangeable rib ( 40 ) for a rifle that is U-shaped and comprising an aiming plane ( 41 ) and two interfacing longitudinal fins ( 43 ), defining a channel ( 45 ) between them suitable for slidably receiving a band ( 60 ) equipped with shaped openings ( 62 ) inside of it, each of the shaped openings ( 62 ) being suitable for engaging a corresponding column ( 22 ) extending from a fixed base ( 20 ) to a barrel ( 10 ) of the rifle, the rib ( 40 ) being equipped with a slot ( 48 ) corresponding to an actuation hole ( 65 ) formed in the band ( 60 ) through which it is possible to actuate the sliding of the band ( 60 ) so as to take the edges of the shaped openings ( 62 ) to engage in grooves ( 23 ) realised along the columns ( 22 ) to prevent the detachment of the rib, said rib ( 40 ) also comprising, at at least one of its ends, a top lever seat ( 51 ) which is coupled with at least one top lever base ( 30 , 31 ) correspondingly realised on the barrel to prevent the longitudinal sliding of the rib.