Gas block with an extended portion designed to act as a heat sink and provide structural support to the gas tube

Abstract

An improved gas impingement system including an upper receiver incorporating a barrel. A gas block is secured to a forward location of the barrel and includes a rearward extending portion shrouding a forward portion of a gas tube connected to the gas block. The gas tube is in communication with a gas port defined in the gas block extending to an interior of the barrel. The gas tube extends rearwardly from the gas block and communicates at a rear end with a key of a bolt carrier positioned within a firing chamber of the upper receiver. Upon discharging a ballistic from a cartridge contained within the chamber, pressurized gas resulting from the discharge is diverted through the gas port, gas block, and gas tube to the key, causing the bolt carrier to move rearward, with the rearward extending portion of the gas block both structurally supporting the gas tube and externally sinking heat from the gas tube.

1 . An improved gas impingement system, comprising:
 an upper receiver incorporating a barrel;   a gas block secured to a forward location of the barrel and including a rearward extending portion shrouding a forward portion of a gas tube connected to said gas block, said gas tube being in communication with a gas port defined in said gas block extending to an interior of said barrel, said gas tube extending rearwardly from said gas block and communicating at a rear end with a key of a bolt carrier positioned within a firing chamber of said upper receiver; and   upon discharging a ballistic from a cartridge contained within said chamber, pressurized gas resulting from the discharge being diverted through said gas port, gas block, and gas tube to said key, causing said bolt carrier to move rearward, said rearward extending portion of said gas block both structurally supporting said gas tube and externally sinking heat from said gas tube.   
     
     
         2 . The system as described in  claim 1 , further comprising a first interior aperture axially formed through said rearward extending portion of said gas block for mounting said rearwardly extending gas tube. 
     
     
         3 . The system as described in  claim 2 , further comprising a main axial aperture defined through a main body of said gas block for mounting over an exterior of said barrel. 
     
     
         4 . The system as described in  claim 1 , further comprising said gas block being constructed of a heat dissipating steel.