The Enhanced AR Magazine Release from Magpul offers easy install without a gunsmith. The Magpul AR Enhanced Magazine Release provides a larger contact surface for ease and speed when changing out your magazine. Machined from mil-spec anodized aluminum Two-piece construction for easy installation and reduced profile Provides larger contact surface for positive activation The Enhanced AR Magazine Release from Magpul is compatible with most 5.56 and 7.62 pattern receivers. Mfg: Magpul