SKS Tri-Rail receiver cover with 4X30 scope and rings. SKS receiver cover provides a top rail for mounting the included 4X30 compact scope and two side rails for mounting accessories like flashlights or lasers to your SKS. Specifications for NcSTAR SKS Combo/Tri-Mount/4X30 Compact Scope w/1in Rings: Manufacturer: NcSTAR Objective Lens Diameter: 30 mm Magnification: 4 x Reticle: P4 Sniper Tube Diameter: 1 in Exit Pupil: 7.5 mm Finish: Anodized Field of View, Linear: 26.2 ft at 100 yds Eye Relief: 3 in Color: Black Adjustment Click Value: 1/4 MOA Adjustment Type: MOA Illumination Type: Non-Illuminated Fabric/Material: Aluminum Optical Coating: Multi-Coated Included Accessories: Pair of 1in Aluminum Weaver Style Rings Magnification Type: Fixed Gun Type: Rifle Gun Model: SKS Features of NcSTAR SKS Combo/Tri-Mount/4X30 Compact Scope w/1in Rings: The perfect combo kit to install a compact 4X30 scope onto your SKS rifle Replaces existing SKS receiver cover Fits most of the different manufactures of SKS rifles 4X30 compact tactical scope has one piece main tube with multi-coated lenses and included lens caps Combo also includes a pair 1 aluminum weaver scope rings Constructed from steel and aluminum materials with a black finish. Package Contents: NcSTAR SKS Combo/Tri-Mount/4X30 Compact Scope w/1in Rings