Spuhr Side Clamp Picatinny B Series Black A-0069. Fits: SP-4003b SP-4603b SP-4803b Specifications for Spuhr Side Clamps Picatinny B Series: Manufacturer: Spuhr Color: Black Base/Mount Type: Picatinny Fit: SP-4803b SP-4003b SP-4603b Package Contents:...