The Radical Stripped Lower Receiver is a component designed for AR15 builds, featuring a semi-auto action. This stripped lower receiver is compatible with .223 Rem and 5.56 NATO calibers, making it suitable for various shooting applications.Key FeaturesModel: Part of the RF-15 series, specifically designed for AR15 configurations.Color: Finished in a sleek black color, providing a classic look for your firearm build.