Joint between a sound suppressor and a barrel of a firearm

Abstract

A joint between a suppressor and a barrel of a firearm. The joint includes an adapter that is secured to the muzzle of the barrel and that receives the suppressor. A connection element is arranged at the rear end part of the suppressor and fits the forward end part of the adapter. The connection element has a disc-shaped forward end part and a tubular rear end part that serves for fitting the forward end part of the adapter. A tube section is coaxially attached to the connection element with a forward end part and in contact with the forward end part of the adapter with a rear end part in the mounted position of the suppressor. The joint provide for improved gas sealing and aligning of suppressor and barrel.

1 . A joint for connecting a suppressor to a barrel of a firearm, comprising:
 a substantially cylindrical adapter defining an axis, said adapter having a rear end part for coaxially securing a muzzle of the firearm barrel thereto and a forward end part for receiving the suppressor,   a through bore formed in the adapter in line with the bore in the barrel,   a connection element arranged at the rear end part of the suppressor for fitting to the forward end part of the adapter, the connection element having a disc-shaped forward end part and a tubular rear end part, with the rear tubular end part of the connection element coaxially fitting the forward end part of the adapter, and with a through bore present in the disc-shaped forward end part of the connection element coaxially aligned with the tubular rear end part, and   a tube section coaxially attached to the connection element, with the tube section having a forward end part in contact with the forward end part of the adapter and a rear end part in the mounted position of the suppressor.   
   
   
       2 . The joint of  claim 1 , wherein the rear end part of the tube section extends into the through bore of the adapter. 
   
   
       3 . The joint of  claim 1 , wherein a forward part of the through bore of the adapter is conical and that the rear end part of the tube section has a corresponding conicity. 
   
   
       4 . The joint of  claim 1 , wherein the forward end part of the tube section is attached to the through bore of the disc-shaped forward end part of the connection element. 
   
   
       5 . The joint of  claim 1 , wherein the forward end part of the tube section has an outer thread and the disc-shaped forward end part of the connection element has a corresponding inner thread. 
   
   
       6 . The joint of  claim 5 , which further comprises means for securing the suppressor to the adapter by turning the suppressor in relation to the adapter. 
   
   
       7 . The joint of  claim 6 , wherein the securing means is arranged for turning in an opposite direction to that in which the outer thread of the tube section is screwed into the inner thread of the disc-shaped forward end part of the connection element. 
   
   
       8 . The joint of  claim 6 , wherein the securing means comprises a ring-shaped groove formed in the adapter, and at least one projection on the inner side of the tubular rear end part of the connection element for engaging the ring-shaped groove in the mounted position of the suppressor. 
   
   
       9 . The joint of  claim 6 , wherein the adapter has a longitudinally extending slot and that the at least one projection on the tubular rear end part of the connection element fits slidingly into the slot. 
   
   
       10 . The joint of  claim 1 , wherein the adapter is formed as a flash hider.