A method of providing a semi-automatic rifle with a reversible safety selector is provided. The method including the steps of: removably and rotatably locating a reversible safety selector in a receiver having a first side and an opposite second side, the reversible safety selector having a selector member and a shaft extending therefrom, the shaft being rotationally received within the receiver and the shaft further comprising a first position selection feature proximate to the selector member and a second position selection feature distal to the selector member, wherein a camming surface is located between the first position selection feature and the second position selection feature, wherein the first position selection feature is configured to only engage a spring biased detent of the receiver when the reversible safety selector is rotated between a first position and a second position with respect to the receiver when the selector member is located on the first side of the receiver, wherein the second position selection feature is configured to only engage the spring biased detent of the receiver when the reversible safety selector is rotated between the first position and the second position with respect to the receiver when the selector member is located on the second side of the receiver, and wherein the camming surface contacts a portion of a trigger of the firearm as the reversible safety selector is rotated between the first position and the second position with respect to the receiver.