Semi-automatic rifle restrictors and methods

Abstract

A production direct gas impingement semi-automatic AR-style rifle is converted to a single shot, straight pull bolt action rifle that includes: a) conventional rifle components, including an upper receiver and lower, trigger, trigger guard, barrel; b) a direct gas impingement semi-automatic firing mechanism including automatic gas actuated casing ejection, automatic gas actuated bolt and hammer reset, and automatic gas actuated cartridge reload functionality, including a bolt carrier with two production carrier gas key screw threaded receiving orifices and having no production carrier gas key, and a having a metal gas blocking and diverting mechanism attached to the bolt carrier in the place of a production carrier gas key. This inhibits semi-automatic operation of the rifle by disabling the automatic gas actuated casing ejection, bolt and hammer reset, and cartridge reload functionality. In some embodiments the bolt carrier assembly and aforementioned gas diverting block mechanism components are unistructurally formed.

What is claimed is: 
     
         1 . A method of converting a production AR-style direct gas impingement semi-automatic rifle to a single shot, straight pull bolt action rifle which comprises:
 a) removing the bolt carrier with carrier gas key from the upper receiver of said rifle;   b) removing said carrier gas key from said bolt carrier;   c) installing a dual-bored metal gas diverting block mechanism in place of said carrier gas key on said bolt carrier attached to said bolt carrier at said two threaded carrier gas key screw receiving orifices; and,   d) inserting said bolt carrier with said metal gas diverting block mechanism back into the upper receiver of said rifle so as to inhibit semi-automatic operation of said semi-automatic rifle by disabling the automatic gas actuated casing ejection, automatic gas actuated bolt and hammer reset, and automatic gas actuated cartridge reload functionality.   
     
     
         2 . A method of converting a production AR-style direct gas impingement semi-automatic rifle to a single shot, straight pull bolt action rifle of claim  21  wherein said metal gas diverting block mechanism is made of metal selected from the group consisting of aluminum, titanium, steel and stainless steel. 
     
     
         3 . A method of converting a production AR-style direct gas impingement semi-automatic rifle to a single shot, straight pull bolt action rifle of claim  21  wherein said bolt carrier has a top flat portion with two threaded orifices for receiving carrier gas key screws and said metal gas diverting block mechanism contains two corresponding orifices and said step c) of claim  21  is performed by screwing said metal gas diverting block mechanism to said bolt carrier. 
     
     
         4 . A method of converting a production AR-style direct gas impingement semi-automatic rifle to a single shot, straight pull bolt action rifle of claim  21  wherein said metal gas diverting block mechanism is a unitary component. 
     
     
         5 . A method of converting a production AR-style direct gas impingement semi-automatic rifle to a single shot, straight pull bolt action rifle of claim  21  wherein said metal gas diverting block mechanism is a two-component metal gas diverting block mechanism. 
     
     
         6 . A method of converting a production AR-style direct gas impingement semi-automatic rifle to a single shot, straight pull bolt action rifle which comprises:
 a) removing the charge handle and bolt carrier with carrier gas key from the upper receiver of said rifle;   b) removing said carrier gas key from said bolt carrier;   c) installing a gas blocking/diverting mechanism and a charge/pull handle combination mechanism in place of said carrier gas key on said bolt carrier, that includes a dual-bored and threaded metal gas diverting block mechanism and a charging handle; and,   d) inserting bolt carrier with said metal gas diverting block mechanism and said charge/pull handle combination mechanism back into the upper receiver of said rifle.   
     
     
         7 . A method of converting a production AR-style direct gas impingement semi-automatic rifle to a single shot, straight pull bolt action rifle of claim  26  wherein said metal gas diverting block mechanism and charge handle combination is selected from the group consisting of aluminum, titanium, steel and stainless steel. 
     
     
         8 . A method of converting a production AR-style direct gas impingement semi-automatic rifle to a single shot, straight pull bolt action rifle of claim  26  wherein said bolt carrier has a top flat portion with two threaded orifices for receiving carrier gas key screws and each of said metal gas diverting block mechanism and said charging handle contains two corresponding orifices and said step c) of claim  26  is performed by screwing said metal gas diverting block mechanism and said charging handle combination to said bolt carrier. 
     
     
         9 . A method of converting a production AR-style direct gas impingement semi-automatic rifle to a single shot, straight pull bolt action rifle of claim  26  wherein said metal gas diverting block mechanism and charge handle combination is a unitary component. 
     
     
         10 . A method of converting a production AR-style direct gas impingement semi-automatic rifle to a single shot, straight pull bolt action rifle of claim  26  wherein said metal gas diverting block mechanism and charge handle combination is a two-component metal gas diverting block mechanism.