SPEED slide racker for all Glock models by Magloc (does not fit G42) 1. Extended 0.25 2. Made from black anodize 6061  T6 Aluminium with 20 RC hardness. 3. This sllide rackers forms no step behind the rear sight allowing the shooter a quicker acquisition of the sight picture. 4. Can chamber an empty gun in one hand by racking the slide racker on shooter's holster. 5. Provides more surfaces for racking the slide.