Kel-Tec KSG Upgrade Rail Combo Kit. Includes Extended Precision Upper Rail, Mini Angle Rail + "Extended" Lower Billet Picatinny Rail - by Hi-Tech Custom Hi-Tech's KSG Upgrade Rail Combo Set with Extended Lower Billet Picatinny Rail with our "Patent Pending" no side screw attach design. Our most popular Rail Upgrade package in one. Billet Lower rail Weight at 2.8 oz. **All Made in the USA by Hi-Tech Custom** Lower Rail Length: 6.615", Slides right over existing plastic lower rail with flush mounting set screws. ** No sticking out screws & slim custom design specifically for the KSG** This item prevents plastic rail breakages if your using vertical pistol grips. Top Extended Precision Rail gives more length for extended sight radius. Engineered for superior versatility and lightest weight.