Spuhr GEN1 Wilcox RAPTAR-S Adapter Black. Features an interrupted rail to compensate for the mold seam on the Gen1 RAPTAR-S (if mounted on a standard uninterrupted Picatinny rail the Gen1 RAPTAR-S will seesaw when not using a riser/Picatinny Clamp). Includes screws. Height: 35 mm/1.38in Length: 123 mm/4.86in Length: 104 mm/4.095in (Picatinny Rail) Weight: 58 g/2.0 oz Specifications for Spuhr GEN1 Wilcox RAPTAR-S Adapters: Manufacturer: Spuhr Color: Black Gun Rail: Picatinny Length: 123 mm Height: 35 mm Weight: 2 oz Included Accessories: Screws Package Contents: Spuhr GEN1 Wilcox RAPTAR-S Adapters Spuhr A-0029C: GEN1 Wilcox RAPTAR-S Adapter Black