Mounting optics and tactical accessories is easier than ever when using the Leupold Backcountry Cross-Slot Picatinny Rail. These Riflescope Mounts & Bases made by Leupold are machined from 7075-T6 aircraft-grade aluminum for a rugged build that's also lightweight. To accommodate your needs, the Leupold Backcountry Cross-Slot Mounting Rail fits both Weaver and Picatinny-style rings. Add some extra utility to your weapon with the Leupold Backcountry Cross-Slot Base.Features:Machined from 7075-T6 aircraft-grade aluminumFits both Picatinny and Weaver-style ringsSpecifications:Manufacturer: LeupoldColor: BlackFinish: MatteFabric/Material: 7075-T6 AluminumBase/Mount Type: PicatinnyCondition: NewRing Type: Weaver Style