USED XS Sight Systems R3D 2.0 Night Sight S&W STD. HT. M&P 2.0 OR Full Size & Compact Green SW-R206P-6G. Made from durable aluminum with Picatinny slots and a hard anodized finish the Lever Rail allows precise eye relief adjustment with any optic. It's compatible with conventional scopes scout scopes and red dots. Expand your SandW 19854 .44 mag scope mount options with the XS lever rail. Specifications for XS Sight Systems R3D 2.0 Night Sight: Manufacturer: XS Sight Systems Color: Black Gun Type: Pistol Illumination Type: Tritium Condition: New Features of XS Sight Systems R3D 2.0 Night Sight Picatinny spec rail allows for scope or red dot mounting Lightweight aluminum rail hard anodized for durability Easy DIY upgrade Package Contents: XS Sight Systems R3D 2.0 Night Sight XS Sight Systems SW-R206P-6G: R3D 2.0 Night Sight S&W STD. HT. M&P 2.0 OR Full Size & Compact Green