Rise Armament Ambidextrous Safety Selector, Fits AR-15, Matte Finish, Black RA-6423-BLK With its innovative" patent-pending design" the RISE Ambidextrous Safety Selector will enhance the functionality and reliability of your AR-15" AR-10" or AR9. Chasing after a safety detent or spring is a thing of the past as those small parts are self-contained inside the RISE Ambi Safety Selector. With an incredibly nice 69-degree throw" you can quickly and easily swap from the safe to fire position. The long and short paddle on the RISE Ambi Safety Selector are interchangeable and easy to swap as well" meaning left- or right-handed shooters can pick the paddle they prefer to use. The paddles won't walk out on you either" as they are securely locked in with a detent instead of screws. Precision machined from 316 stainless steel" and finished with black nitride" the RISE Ambi Safety Selector is a highly durable" premium upgrade for your AR.