The Magpul AR Enhanced Magazine Release provides an enlarged contact surface for quick and fumble free magazine changes. With easy bolt-on installation with no gunsmithing required, the Enhanced AR Magazine Release is made of Mil-Spec hard anodized aluminum to provide durability and light weight. Compatible with most 5.56 and 7.62 pattern receivers.Specifications and Features:Compatible With: AR-10, LR-308Country of Origin: United States of AmericaFinish: MatteMaterial: Aluminum