The Talon(TM) ambidextrous safety selector is a modular design that can be installed as a standard 90Adeg or as a 45Adeg short throw by simply rotating the shaft 180Adeg inside the lower receiver. Selector levers install using a precision machined dovetail interface with spring-loaded retention stud to lock the lever in place - no screws to come loose or break. The Talon is compatible with most semi-automatic AR15 & AR10/SR25-pattern rifles. Patent pending. Designed & Manufactured in the USA 4-Lever Combo: Short, Medium, Medium Taper, & Long Levers Machined from Billet aircraft grade aluminum w Milspec Type 3 Hard Coat Anodized Finish Mfg: Radian Weapons