Anyone with average- to small hands now can easily perform magazine changes without shifting their firing grip on the weapon. The VT GMR is easy to install, and made of the same tough polymer as the Glock factory part. The extended catch is justperfect...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. DISCLAIMER:This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols.