Christie's Extended Magazine Release is specificly designed for the Ruger 10/22 and is a great advantage when you need a quick magazine release. It extends about one inch further than the factory release making it easily accessible. The Extended Magazine Release has a great grip surface which eliminates your finger slipping during release. The Extended Magazine Release is made of 66% nylon with 40% mineral fill. It is durable and resists oil, grease and acetone. It comes with easy to install instructions and diagram.