Get some of the best visibility imaginable with the state-of-the-art XS Sight Systems DXT2 Big Dot Night Sight - Sig Sauer. These Pistol Sights from the pioneers at XS Sight Systems feature big dot technology that is brighter and easier to see in low and no visibility settings. With a tritium powered front and rear sight the XS Sight Systems DXT2 Tritium Big Dot Tactical Night Sight features a beta emitting lamp glow that helps to aid in sight alignment for the perfect shot every time. By utilizing the white light spectrum this all-in-one night sight increases the overall surface area of your convex. Take on high stress shooting situations with ease thanks to the XS Sight Systems DXT2 Tritium Big Dot Front and Rear Night Sight by your side. Specifications for XS Sight Systems DXT2 Big Dot Night Sight - Sig Sauer: Manufacturer: XS Sight Systems Gun Make: SIG Sauer Front Sight Color: Green Rear Sight Color: Green Fabric/Material: Steel Gun Type: Pistol Illumination Type: Tritium Included Accessories: Standard Condition: New Mount Type: Dovetail Finish: Blued Features of XS Sight Systems DXT2 Big Dot Night Sight - Sig Sauer Big Dot - Remains visible under stress when focus is drawn downrange. Outside diameter 0.188" Yellow Front Sight - High-contrast color designed for maximum visibility in bright to low light Glow Dot - Convex photoluminescent dot absorbs ambient light and glows in low light levels Tritium Powered Front & Rear Sight - Beta Emitting lamps glow in low light to aid in sight alignment V-Notch Rear - Low-profile V provides greater visibility of objects downrange of front sight Dot-the-"i" Sight Picture - Straight line sight picture with differentiated front and rear sight prevents shooters from confusing the front and rear sight Rear Sight White Outline - Aids in rear sight identification for proper sight alignment Rear Sight Ledge - Aids in one-handed slide manipulations CNC Machined from steel bar stock 10 Year Warranty - No Questions Asked night sight warranty Fits in common holsters Package Contents: XS Sight Systems DXT2 Big Dot Night Sight - Sig Sauer Allen Key Red Threadlocker What firearm models does the manufacturer say XS Sight Systems DXT2 Big Dot Night Sight - Sig Sauer is compatible with? The manufacturer says that XS Sight Systems DXT2 Big Dot Night Sight - Sig Sauer is compatible with SIG Sauer P229, SIG Sauer P226, SIG Sauer P225, Springfield Armory XD, Springfield Armory XD-S, SIG Sauer P320, Springfield Armory XD-M, Springfield Armory Hellcat, SIG Sauer P365