The Leupold Mark 4 Picatinny-Style Scope Base is ideal for us on your long range rifle. Mark 4 bases feature a 15 MOA slope for long range shooting and are constructed of solid steel. This base will accept either 6-48 base screws or oversized 8-40 base screws (both sizes of screws are included).
Base Type: Picatinny
Base Style: 1-Piece
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