What ultimately STOPS the foreward movement of the op rod / bolt assembly as it rushes back to battery ?
Is it actually the piston which then gets hammered into the end of the gas plug ? If so, seems like one whole hell a lot of chaos, peening punishment to the business end of the stick.
Is it actually the piston which then gets hammered into the end of the gas plug ? If so, seems like one whole hell a lot of chaos, peening punishment to the business end of the stick.