Check the listing for details. ZEV Technologies Extended Mag Release GLOCK Gen 1-3, Small Black - MR-SM-3G-B. Color: Black, Condition: New. Listed at 39.95 USD. Zev Technologies Extended Mag Release for Gen 1-3, Small Black - MR-SM-3G-B Description The Zev Technologies & trade Extended Magazine Release for Glock is easy to install and Machined from Billet Aluminum then Hard Anodized. This magazine release is a must for any Glock owner. CNC Aircraft Quality Billet Aluminum. Black Hard Anodize Mag-release body. Textured button face. Black Hard Anodize button or Silver un-anodized button. Drop in replacement. ZEV Parts always incorporate design, feel and performance. FeaturesCNC Aircraft Quality Billet AluminumBlack Hard Anodize Mag-release bodyTextured button faceBlack Hard Anodize button or Silver un-anodized buttonDrop in replacementAllen Wrench includedCOMPATIBILITYGlock 17 (1st - 3rd Gen)Glock 17C (1st - 3rd Gen)Glock 17L (1st - 3rd Gen)Glock 19 (1st - 3rd Gen)Glock 19C (1st - 3rd Gen)Glock 22 (1st - 3rd Gen)Glock 22C (1st - 3rd Gen)Glock 23 (1st - 3rd Gen)Glock 23C (1st - 3rd Gen)Glock 24 (1st - 3rd Gen)Glock 24C (1st - 3rd Gen)Glock 26 (1st - 3rd Gen)Glock 27 (1st - 3rd Gen)Glock 31 (1st - 3rd Gen)Glock 31C (1st - 3rd Gen)Glock 32 (1st - 3rd Gen)Glock 32C (1st - 3rd Gen)Glock 33 (1st - 3rd Gen)Glock 34 (1st - 3rd Gen)Glock 35 (1st - 3rd Gen)Glock 37 (1st - 3rd Gen)Glock 38 (1st - 3rd Gen)Glock 39 (1st - 3rd Gen)