The Talon ambidextrous safety selector is a modular design that can be installed as a standard 90deg or as a 45deg short throw by simply rotating the shaft 180deg 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