The Geissele Ultra Duty mag release button is meticulously designed to complement the aesthetics and functionality of your carbine. Featuring a textured surface that mirrors the sophisticated design of our Maritime bolt catch, this mag release button not only enhances the visual appeal of your firearm but also ensures a secure and reliable grip. Crafted for those who demand both style and performance, the Ultra Duty mag release button is the perfect finishing touch to elevate your carbine to a new level of excellence. This component is also included in the super Duty and Ultra Duty lower parts kits