Leupold STD One-Piece base, Marlin 336 Matte

• One-piece steel base: The solid one-piece design adds rigidity between the receiver and optic, helping maintain alignment under recoil and hard field use.
• STD mounting interface: Built for Leupold Standard (STD) rings, it uses the classic front dovetail and rear windage-screw arrangement for secure scope installation and practical bore-sighting adjustment.
• Model-specific fit: This base is shaped for rifles such as the Marlin 336 family, which helps provide proper screw spacing and receiver fit without improvised adapters.
• Matte black finish: The non-reflective matte surface suits hunting rifles and reduces glare while matching matte scopes and rings more cleanly.
• Made in USA construction: The steel body and domestic manufacture reflect Leupold’s emphasis on durable mounting hardware for regular hunting and sporting use.

About the Leupold STD Bases Series

Leupold STD Bases are the company’s traditional hunting-style mounting system, built for shooters who want a proven steel platform rather than a bulky tactical rail. The series sits in Leupold’s mount lineup as a classic option for sporting rifles, especially where a clean receiver profile and conventional scope placement matter more than accessory slots or quick-detach features. Steel construction and rifle-specific fit are central to the design, with bases offered in one-piece and two-piece configurations depending on the firearm and intended setup.

A defining feature of the STD system is its front dovetail ring interface combined with rear windage screws. In practice, that gives the installer some lateral adjustment during bore sighting while keeping the front ring locked firmly into the base. The series has long appealed to hunters using bolt actions and lever actions because it balances strength, simplicity, and a low-profile appearance. Leupold has also offered STD bases in finishes such as matte, gloss, and silver, making the system easy to match to both rifle and scope. For shooters who prefer a conventional scope mount with established field use behind it, the STD family remains one of Leupold’s best-known mounting formats.

About the Leupold STD One-Piece base, Marlin 336 Matte

The Leupold STD One-Piece base, Marlin 336 Matte is a rifle-specific steel scope base made for lever-action platforms including the Marlin 336 pattern and related compatible models. Its one-piece layout gives the optic a stable mounting foundation across the receiver, which is especially useful on hunting rifles that see repeated recoil, transport in vehicles, and regular exposure to weather. For a traditional lever gun setup, this style of base keeps the installation straightforward while preserving the familiar look of a scoped sporting rifle.

This model uses the Leupold Standard (STD) interface, so it works with STD rings that lock into the front dovetail and use rear windage screws for alignment. That arrangement matters in practice because it lets the installer make small left-right corrections during bore sighting without relying entirely on the riflescope’s internal adjustment range. The base is made from steel, which suits hunters who prioritize rigidity and long-term durability over minimum weight. Its matte black finish keeps reflections down and pairs naturally with matte hunting optics.

With a listed height of 4.00 mm and compact overall dimensions, this base is intended to provide a close, tidy fit to the receiver rather than adding unnecessary bulk. It is also made in the USA, in keeping with Leupold’s long-established approach to sporting optics and mounting hardware. For a Marlin 336 owner who wants a conventional hunting optics mount with steel construction and the familiar STD ring system, this base is a practical match.

About Leupold

Leupold & Volpel was founded in Portland, Oregon, in 1907 by Fred Leupold and Adam Volpel. The company later became Leupold & Stevens, Inc. and is now headquartered in Beaverton, Oregon, United States. It remains family-owned and focuses on sport optics for hunting, shooting, and outdoor use.

Leupold’s background in this category is closely tied to riflescopes and mounting systems. The company introduced its first riflescope, the Plainsman, in 1947, and later introduced the Duplex reticle in 1962, a design that became widely recognized among hunters. Its product range now includes riflescopes, red dot sights, binoculars, spotting scopes, rangefinders, and thermal optics. Within riflescopes, lines such as the VX-series and Mark-series reflect Leupold’s long experience serving both sporting and tactical users, and that same practical design approach carries over into its steel bases and rings.

Main Features

• Manufacturer: Leupold
• Series: Leupold STD Bases
• Made in: USA
• Material: Steel
• Color: Black - Matte
• Height BH.: 4.00 mm
• A: 12.7 mm
• B: 69.85 mm
• C: 12.7 mm
• Compatible mounting system: Leupold Standard (STD)
• Compatible firearms: Henry H009, Henry H010, Henry H018, Marlin 336, Marlin 375, Marlin 444, Marlin 1895, Marlin Model 36, Marlin 922M, Marlin Model 45 Carbine, Marlin 30 AS, Marlin Camp Carbine 9 mm

Warranty

10 years. This mount base is covered by a 10-year warranty, providing defined long-term support for normal sporting and hunting use.