Manufacturer: Leupold 49987
Leupold mounts are every bit as rugged and dependable as the Leupold optics they're intended to secure. With a huge variety of mounting systems, for nearly every type of firearm under the sun, you're sure to find the perfect match for you firearm, and your style of shooting.
Specifications and Features:
Machined steel construction.
Versatile, available for many different rifles.
Forward part of the base accepts a dovetail ring, locking it solidly into position.
Rear ring is secured by windage adjustment screws.
STD rings are engineered to match up with STD One Piece and STD Two Piece bases.
Five different ring heights are available for STD bases
STD One Piece Base
Fits Marlin 336, 336T, 35, 36, 375, 444, 1895, 9, 45, 30AS, 922M and XLR and Western Field M7-40