Check the listing for details. Warne Skyline 34mm Medium Precision Scope Mount Ring/Base Combo, Black - 7821M. Color: Matte Black, Condition: New. Listed at 239.99 USD. Warne Skyline 34mm Medium Precision Scope Mount Ring/Base Combo, Black - 7821M Description Designed from the ground up as a scope mount for the precision rifle shooter in mind the Warne Skyline Precision Mount meets the specialized needs of those shooters. Using the STANAG rail interface to allow precise mounting and return to zero capability better than the Picatinny system but still compatible with the Picatinny system it has the ability to mount accessories directly to the rings with 10 different interfaces to meet the need of precision shooters to allow the scope to be moved to the correct eye relief. Warne started as a retirement company for Jack Warne and has grown to produce scope bases for most firearms at the quality he wanted. Reach for Warne When Accuracy Matters. FeaturesPicatinny mountFor 34mm TubeMedium HeightOne Piece Base and Rings Combo10 interfaces for Warne accessoriesBlack oxide finishMaterial 7075 T6 aluminum billet