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 catch is just perfect_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. For Gen 4 pistols only. Not for use with Gen 1 2 & 3 pistols. Fits Glock models G17 19 22 23 26 27 31 32 34 35 and 37.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 specialized factories Image may not be representative of color or style. Specifications for TangoDown Vickers Tactical Gen3 9mm/.40 Glock Extended Magazine Catch: Manufacturer: TangoDown Gun Make: Glock Gun Model: Glock 35, Glock 34, Glock 24, Glock 22, Glock 17, Glock 33, Glock 27, Glock 37, Glock 26, Glock 32, Glock 31, Glock 23, Glock 19 Condition: New Features of Vickers Tactical Gen3 9mm/.40 Glock Extended Magazine Catch: Extended and radiused, allows magazine release without shifting firing grip Injection molded from same material as OEM factory part Fits the majority of Gen 1, 2 & 3 Glock pistols Package Contents: TangoDown Vickers Tactical Gen3 9mm/.40 Glock Extended Magazine Catch