LEUPOLD STANDARD TWO-PIECE REMINGTON 7 MATTE BLACK BASE The Leupold steel standard bases and rings are the most versatile of any mounting system. The rear ring is secured by windage adjustment screws, allowing the scope's internal adjustments to be reserved for precise sight-in. Additionally, shims can be used for gross elevation adjustment, reserving the scope's elevation adjustment for bullet drop compensation dial applications. RELENTLESS PERFORMANCE STARTS HERE! Leupold offers an unrivaled selection of rings, mounts, and bases. Yet for every rifle and scope combination, there is one ideal mounting solution. Your mounting system is the crucial link between your firearm and your optic, and it's where accuracy and performance start. Leupold mounts are guaranteed to last a lifetime..