XS Sight Systems DXT2 Standard Dot Sight Green Glock 20/21/29/30/30S/37/41. DXT2 Standard Dot sights drive focus to the front sight using a high-contrast front and a low profile V-notch rear. DXT2 Standard Dot front sights use a patent pending glow dot that absorbs light and glows in low light levels before it is dark enough to see the tritium. The increased surface area of the convex dot increases light absorption intensifying the charge of the glow properties of the dot. The dot-the i sight picture with a tritium dot in the front sight and a tritium bar in the rear prevents confusing the front and rear sight in high-stress situations. In most gunfights the victim and attacker are both moving and the victims focus is drawn to the threat. The wide field of view increases visibility of the front sight and of the threat downrange. Outside Diameter Standard Dot 0.140"; fits in common holsters. Installation might require filing to fit sight to dovetail do not use a sight press/pusher tool. Fits Glock models 20 21 29 30 30S 37 40 & 41. Specifications for XS Sight Systems DXT2 Standard Dot Sight Glock: Manufacturer: XS Sight Systems Gun Make: Glock Color: Black Front Sight Color: Green Sight Style: V-Notch Fabric/Material: Steel Gun Type: Pistol Illumination Type: Tritium Features of XS Sight Systems DXT2 Standard Dot Sight Glock Steel sight with blued finish Green tritium front and rear Green photoluminescent ring front Snag-free design Package Contents: XS Sight Systems DXT2 Standard Dot Sight Glock XS Sight Systems GL-0010S-6G: DXT2 Standard Dot Sight Green Glock 20/21/29/30/30S/37/41