Complex sentence: Designed for the civilian market, especially within the United States, is a semi-automatic variant labeled the ARX-100 that retains the ARX-160's operational features, with the exception that the safety rotates 90 degrees into the Fire position.
Split into simpler sentences: Designed for the civilian market, especially within the United States, is a semi-automatic variant labeled the ARX-100. Retaining the ARX-160's operational features, with the exception that the safety rotates 90 degrees into the Fire position.