The S20 high-duty performance scope mount is something never seen before. Made from extremely strong aircraft-grade aluminium and steel, it was designed specifically to provide a robust scope mount for the demanding user. It provides a strong hold for a rigid scope, supported by the sturdy aluminium base. A variety of different heights and ring sizes ensures that theres a perfect option for every shooter. The scope rings can also be installed to different spots in the base, ensuring that both long and short optical tubes are compatible with this mount..Features: Designed to be used with and requires Sako S20 Optilok BasesUnrivaled DurabilityFits 34mm tubeLow height Sako ONE 34mm OptiLock Ring Set Low S588207294