Anyone with average - to small hands now can easily perform magazine changes without shifting their firing grip on the weapon. The VT GMR-003 is easy to install, and made of the same tough polymer as the GLOCK factory part. The extended release is just perfecta |not too short, not too long, i.e. the magazine will not accidentally release if pistol is laid on a hard surface. Perfect with use of back strap mounted lasers. Ambidextrous. Not for use with Gen 1, 2, & 3 pistols. Fits GLOCK models G17, 19, 22, 23, 26, 27, 31, 32, 34, & 35. Also fits Gen 5 models 17, 19, 19X, 22, 23, 26, 27, 31, 34, 35, 44, 45 Features: Extended and radiused, allows magazine release without shifting firing grip Injection molded from same material as OEM factory part Fits the majority of Gen 4 GLOCK pistols OA length: 1.22" Weight: 0.2 oz. Made in USA