The Talley Manufacturing Winchester Xpert Picatinny Base is precision-engineered in America from high-grade 7000 series aluminum alloy with a durable red hard-coat anodized finish rated to 65 Rockwell hardness.Talley Winchester Xpert Picatinny Rail BaseFully CNC machined 1-piece constructionDesigned specifically for Winchester Xpert 22 riflesRed hard-coat anodized finish for durabilityLightweight 7000 series aluminum alloyMIL-STD-1913 Picatinny rail specificationsIncludes mounting screws and T-15 wrenchIndustry's tightest manufacturing tolerancesThis precision-manufactured base provides a reliable mounting platform for all MIL-STD-1913 compliant optics mounts and Talley Picatinny scope mounts ensuring lifetime durability and perfect fit on your Winchester Xpert 22 rifle.