MDT Picatinny Scope Base, Ruger 10/22, 40 MOA

• 40 MOA Inclination: built-in cant preserves more of a scope’s internal elevation travel, which is especially useful when setting up a Ruger 10/22 for extended rimfire distances.
• Picatinny Interface: the rail gives broad compatibility with Picatinny scope rings and optic mounts, making it easier to position a riflescope correctly for eye relief and balance.
• 6061 Aluminum Construction: the aluminum body keeps weight low while still providing the rigidity needed for a stable optic mounting platform.
• Receiver-Matched Profile: the underside is shaped to sit flush on the action, helping the base fit cleanly and support consistent alignment.
• Hard-Anodized Finish: the black anodized surface adds wear resistance, which helps the base stand up to repeated installation, ring clamping, and field use.

About the MDT Picatinny Bases Series

MDT Picatinny Bases are designed as purpose-built optic mounting solutions for shooters who want a more precise interface between rifle and scope than a generic rail can provide. Within MDT’s lineup, this series supports practical use across hunting, competition, long-range shooting, and general range work, with models offered for many popular actions and in 20, 30, 40, and 50 MOA variants. That range of inclinations lets shooters choose how much additional elevation they want to build into the mounting system.

The series is defined by a straightforward mechanical approach: CNC-machined 6061-T6 aluminum, a Mil-Spec Type II hard-anodized finish, and rail geometry made to MIL-STD-1913 and STANAG 4694 specifications. In practical terms, that means broad compatibility with Picatinny rings and mounts, along with the consistency expected from a base intended for repeatable optic alignment. MDT also shapes the underside to sit flush on the receiver and follow the ejection-port geometry, and some action patterns include an integrated recoil lug where the design allows it. The result is a series focused on secure fit, clean installation, and making better use of a scope’s elevation adjustment.

About the MDT Picatinny Scope Base, Ruger 10/22, 40 MOA

The MDT Picatinny Scope Base, Ruger 10/22, 40 MOA is tailored for shooters building a rimfire rifle around a Ruger 10/22 and a scope setup intended to reach beyond short-range zero distances. Its defining feature is the 40 MOA incline, which angles the optic slightly downward relative to the bore so the scope retains more upward adjustment for dialing at longer distances. On a rimfire platform, where bullet drop becomes significant quickly, that added elevation reserve can make a real difference when stretching the rifle to small-target work or longer-range practice.

The base uses an aluminium body to keep the mounting system light without giving up the stiffness needed for dependable optic support. Its black finish adds surface durability and gives the rail a subdued appearance that suits both field and range rifles. Because it uses a Picatinny rail interface, it works with a wide range of compatible rings and mounts, which helps when fine-tuning scope position for eye relief or when changing optics later.

Just as important, this base is made specifically for the Ruger 10/22 receiver rather than as a universal part. The receiver-matched footprint helps it sit correctly on the action, which supports a cleaner installation and more consistent scope alignment. For shooters putting together a rimfire training rifle, a hunting optic setup, or a precision-oriented 10/22 build, this base provides the extra cant and solid mounting platform needed to get more usable adjustment from the scope.

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, designing and manufacturing products such as rifle chassis systems, magazines, buttstocks, bipods, scope bases, and scope rings. MDT identifies the TAC21 as its first chassis, which reflects the company’s roots in practical rifle system design.

Today, MDT’s head office remains in British Columbia, Canada, and its product development is closely tied to real shooting use. The company states that its chassis, magazines, and accessories are developed with input from competitive precision shooters, which is relevant to products like scope bases where fit, repeatability, and compatibility matter. In this category, MDT is known for mounting components machined from 6061-T6 aluminum and built to MIL-STD-1913 and STANAG 4694 rail standards.

Main Features

• Product type: Picatinny rail
• Mount series: MDT Picatinny Bases
• Compatibility below: Ruger 10/22
• Compatibility above: Picatinny Rail
• Inclination: 40 MOA
• Material: Aluminium
• Color: Black
• Made in: Canada
• R1: 40.00 mm
• R2: 40.00 mm
• A: 12.7 mm
• B: 65.3 mm
• C: 21.9 mm

Warranty

2 years. MDT states a two-year warranty for this scope base, covering the product for a defined period rather than an open-ended term.

In the Box

• MDT Picatinny Scope Base
• #6-48 TORX screws