| CPC F41A 5/24 (2013.01) [F41A 3/26 (2013.01); F41A 3/38 (2013.01); F41A 3/64 (2013.01); F41A 5/18 (2013.01); F41A 15/12 (2013.01); F41A 19/06 (2013.01)] | 18 Claims | 

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               1. A bolt carrier for a rifle comprising: 
            an elongated cylindrical body comprising: 
                a forward end, a rearward end, a top side, a bottom side, lateral sides, and an internal bore extending from the forward end to the rearward end along a longitudinal axis of the elongated cylindrical body, wherein the internal bore is configured to receive a bolt and a firing pin, 
                a gas key integrally formed on the top side of the elongated cylindrical body; 
                a removable extension nozzle comprising an open front end configured to receive a gas tube; and 
                a pin, 
                wherein the removable extension nozzle and the gas key are configured to be removably secured together by the pin with the open front end externally to the gas key. 
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