MDT Picatinny Scope Base, CZ 457, 40 MOA

• 40 MOA Inclination: adds substantial built-in cant, helping preserve more of a riflescope’s internal elevation for long-range rimfire or precision shooting setups.
• Receiver-Matched Profile: the underside is shaped to sit flush on the action and follow the ejection-port geometry, which supports a secure fit and straightforward optic alignment.
• 6061-T6 Aluminum Construction: keeps weight low while providing the rigidity needed for a stable scope mounting platform on a working rifle.
• MIL-STD-1913 and STANAG 4694 Interface: gives broad compatibility with Picatinny-style rings and mounts, making it easier to match the rail with existing optics hardware.
• Hard-Anodized Black Finish: improves surface durability and wear resistance, helping the base stand up to repeated mounting, handling, and field use.

About the MDT Picatinny Bases Series

MDT Picatinny Bases are designed as practical optic-mounting solutions for bolt-action rifles across a wide range of action types. The series is offered in 20, 30, 40, and 50 MOA variants, giving shooters a way to choose the amount of built-in incline that suits their cartridge, optic, and intended distance. Within MDT’s lineup, these bases serve shooters who want a straightforward, rigid interface between rifle and scope, whether the rifle is set up for hunting, target work, or precision shooting.

A defining trait of the series is its 6061-T6 aluminum construction combined with a Mil-Spec Type II hard-anodized finish, balancing low weight with the durability expected from a rifle accessory that sees regular mounting and adjustment. The rails conform to MIL-STD-1913 and STANAG 4694 dimensions, so they integrate with common Picatinny-compatible rings and mounts. MDT also shapes the underside to sit flush on the receiver and match the ejection-port geometry, and on actions that allow it, selected models incorporate an integrated recoil lug. The result is a series built around fit, repeatability, and added elevation travel for scoped rifles.

About the MDT Picatinny Scope Base, CZ 457, 40 MOA

The MDT Picatinny Scope Base, CZ 457, 40 MOA is configured for shooters building a CZ 457 into a rifle for extended-range rimfire work, target shooting, or other applications where extra elevation adjustment matters. Its defining feature is the 40 MOA incline, which tilts the mounted optic forward enough to help recover more usable upward adjustment in the scope. In practice, that matters when a rifle is being zeroed for longer distances and the shooter wants to avoid running out of turret travel too early.

The base is machined from aluminium, which keeps the assembly light while still providing a stable foundation for rings and optics. Its black hard-anodized finish adds surface protection against wear from installation and repeated optic changes. Because the rail follows Picatinny dimensions, it works with a broad range of compatible rings, making it a flexible choice for different scope sizes and rifle setups.

MDT also profiles the underside so the base sits flush on the receiver and follows the action geometry more closely. That design approach helps produce a cleaner fit and a more secure mounting surface. For a CZ 457 used in precision-oriented shooting, this combination of receiver-specific fit, standardized rail geometry, and strong built-in cant makes the base a practical upgrade over a flat mounting solution.

About MDT

MDT Sporting Goods was established in 2009 and began in Chilliwack, British Columbia, Canada. The company focuses on equipment for target shooting and hunting, with a product range that includes rifle chassis systems, magazines, buttstocks, bipods, scope bases, scope rings, and related accessories. MDT states that its products are developed with input from competitive precision shooters, which helps explain the company’s emphasis on practical fit, repeatability, and modularity.

Within the shooting optics and rifle-accessory space, MDT is particularly known for designing components that support precision rifle setups. The company identifies the TAC21 as its first chassis, and its later product development has continued to center on rifle support systems and mounting hardware. For scope bases in particular, MDT uses CNC-machined 6061-T6 aluminum and builds its rails to MIL-STD-1913 and STANAG 4694 specifications, reflecting a design approach aimed at compatibility and consistent mounting performance.

Main Features

• Manufacturer: MDT
• Series: MDT Picatinny Bases
• Category: Picatinny rail
• Compatibility: CZ 457
• Top interface: Picatinny Rail
• Material: Aluminium
• Color: Black
• Inclination: 40 MOA

Warranty

2 years. MDT states a two-year warranty for this product, covering the scope base for the specified period from the date of purchase.

In the Box

• Picatinny scope base
• #6-48 TORX screws