Warne Maxima Steel 1 Pc Base for Mauser 98 Altered/Unaltered 1 rear hole - Matte. The Warne Mauser Altered/Unaltered 1 pc Base is made from sintered steel with Weaver style cross slots and features one rear screw hole. This excellent Rifle Scope Base from Warne is exactly what you're looking for in a classic steel rifle base. Don't go hunting with out the Warne Mauser 98 Scope Base Adapter. Specifications for Warne Mauser 98 Altered/Unaltered 1 PC Base: Manufacturer: Warne Color: Black Gun Model: Mauser Model 98 Altered Mauser Model 98 Unaltered Condition: New Features of Warne Mauser Rifle Scope Base: Weaver Style Cross Slots One Rear Screw Hole One Piece Package Contents: Warne Mauser 98 Altered/Unaltered 1 PC Base Warne M960M: Maxima Steel 1 Pc Base for Mauser 98 Altered/Unaltered 1 rear hole - Matte M960M