The Armaspec Classic-45/90 is an ambidextrous safety selector is a basic sleek design that allows the shooter to choose from running it as a 90 degree or 45 degree. The levers and incredibly smooth action makes position selection one fluid movement for the operator, while having a super crisp lockup. Leaving you no doubt about your safety status. Once installed, the Classic-45/90 operates easily from either side of the receiver for intuitive use in the field in any circumstance.