Firearm with barrel fixed by at least one screw

Abstract

A firearm with a barrel fixed to a firearm body by at least one screw, wherein the firearm body includes a housing to receive the barrel and wherein the screw is fixed to the firearm body so that the firearm body tightens against or grips the outer surface of the barrel. In order to strengthen the connection between the barrel and the firearm body and fully ensure that the former does not move in either a longitudinal or rotary direction in relation to the latter, the barrel includes at least one surface hollow on its outer surface, and part of the screws already fixed to the firearm body are arranged inside a surface hollow, so that the screws inserted partly into the surface hollow provide longitudinal and rotary locking of the barrel against the firearm body.

1 . A firearm comprising:
 a barrel fixed to a firearm body by means of at least one screw, wherein the firearm body comprises a housing to receive the barrel and wherein the screw is fixed to the firearm body so that the firearm body tightens against or grips an outer surface of the barrel; and   wherein the barrel comprises at least one surface hollow on its outer surface, and a part of the screw already fixed to the firearm body is arranged inside the surface hollow, so that the screw inserted partly into the surface hollow prevents potential longitudinal movement of the barrel in relation to the firearm body.   
     
     
         2 . The firearm of  claim 1 , wherein a screw-head part of the screw is partially lodged inside the surface hollow. 
     
     
         3 . The firearm of  claim 2 , wherein only the screw-head portion of the screw is partially lodged inside the surface hollow. 
     
     
         4 . The firearm of  claim 1 , wherein the at least one screw and the respective surface hollow are located at a bottom of the barrel. 
     
     
         5 . The firearm of  claim 1 , wherein each screw corresponds to a different surface hollow. 
     
     
         6 . The firearm of  claim 1 , wherein the at least one screw is concealed by a handguard of the rifle body and wherein said handguard comprises at least one internal element preventing assembly of the handguard onto the rest of the rifle body, by contact with the screw if the screw is not fully screwed in. 
     
     
         7 . The firearm of  claim 1 , comprising a rifle. 
     
     
         8 . A firearm comprising:
 a frame defining a housing;   a barrel comprising an end adapted to be received and engaged within the housing of the frame, the barrel further comprising a recess; and   a screw for engagement within a bore through the frame, wherein a portion of the screw extends into the recess of the barrel when the end of the barrel is received in the housing of the frame and the screw is installed into the bore, thereby resisting movement of the barrel relative to the frame.   
     
     
         9 . The firearm of  claim 8 , wherein the frame comprises a proximal side and a distal side with a gap therebetween, and wherein a shaft portion of the screw passes through a portion of the bore through the proximal side and a threaded portion of the screw engages threads in a portion of the bore through the distal side, to tighten the gap by tightening the screw and thereby engaging the barrel within the housing. 
     
     
         10 . The firearm of  claim 9 , wherein a head portion of the screw abuts a contact shoulder adjacent the portion of the bore through the proximal side of the frame, and extends into the recess of the barrel. 
     
     
         11 . The firearm of  claim 8 , comprising a pair of screws for engagement through respective bores in the frame, and wherein the barrel comprises a pair of recesses, each recess receiving a portion of a respective one of the pair of screws. 
     
     
         12 . The firearm of  claim 8 , further comprising a handguard for attachment adjacent the housing, wherein the handguard comprises an internal element for contacting a portion of the screw if the screw is not fully seated in the bore, and thereby preventing attachment of the handguard. 
     
     
         13 . The firearm of  claim 8 , comprising a rifle. 
     
     
         14 . A firearm comprising:
 a barrel having a surface hollow formed in an external surface thereof; and   a firearm body defining a housing for receiving an end of the barrel, the housing having a proximal side and a distal side with a gap between the proximal and distal sides, the firearm body defining a bore for receiving a screw,   whereby engagement of the screw within the bore draws the distal side of the housing toward the proximal side to tighten the gap and engage the end of the barrel within the housing, and positions a portion of the screw within the surface hollow of the barrel.   
     
     
         15 . The firearm of  claim 14 , wherein the barrel has a pair of surface hollows, and the firearm body defines a pair of bores for receiving a pair of screws, and wherein a portion of each screw is positioned within a respective surface hollow of the barrel when the screws are engaged in their respective bores. 
     
     
         16 . The firearm of  claim 15 , further comprising a handguard for attachment adjacent the housing, wherein the handguard comprises an internal element for contacting a portion of the screw if the screw is not fully seated in the bore, and thereby preventing attachment of the handguard. 
     
     
         17 . The firearm of  claim 14 , comprising a rifle.