MDT Picatinny Scope Base, Ruger American - Rimfire, 20 MOA

• 20 MOA Inclination: adds built-in elevation to the mounting platform, helping preserve more of the riflescope’s internal adjustment for longer-distance shooting with a rimfire rifle.
• MIL-STD-1913 and STANAG 4694 Profile: provides a standardized Picatinny interface, making it easier to pair the base with a wide range of compatible scope rings and optic setups.
• Aluminium Construction: keeps the base light while still providing the rigidity needed for a stable optic mount on a field or range rifle.
• Receiver-Matched Underside Profile: sits flush on the action and follows the ejection-port geometry, which supports secure fitment and clean installation.
• Black Hard-Anodized Finish: adds surface durability and corrosion resistance, helping the base stand up to regular handling and outdoor use.

About the MDT Picatinny Bases Series

MDT Picatinny Bases are designed as practical optic-mounting solutions for shooters who want a solid rail interface without unnecessary bulk. In MDT’s lineup, this series sits alongside the company’s chassis systems, magazines, rings, and other rifle accessories, giving hunters and precision shooters a mounting platform that matches the same functional design approach. The series is offered for a wide range of rifle actions and in 20, 30, 40, and 50 MOA variants, allowing the user to choose the amount of built-in incline that suits the rifle and intended distance.

A defining feature of the series is its adherence to MIL-STD-1913 and STANAG 4694 dimensions, which helps ensure consistent compatibility with Picatinny-mounted optics and rings. MDT machines these bases from 6061-T6 aluminum and finishes them with hard anodizing for low weight and everyday durability. The underside is profiled to sit flush on the receiver and to follow the ejection-port geometry, while selected models also incorporate an integrated recoil lug where the action design permits it. In practical terms, the series is aimed at hunting, competition, long-range, and general shooting applications where a stable, correctly aligned optic base matters.

About the MDT Picatinny Scope Base, Ruger American - Rimfire, 20 MOA

The MDT Picatinny Scope Base, Ruger American - Rimfire, 20 MOA is built for shooters who want to mount a riflescope on the Ruger American Rimfire with a rail that supports both secure fitment and useful elevation bias. Its 20 MOA incline is the key feature here: by tilting the scope slightly downward relative to the bore, the base helps retain more of the optic’s internal elevation travel. On a rimfire rifle used for target work, small-game hunting, or extended-distance practice, that can make it easier to dial for drop without running out of adjustment.

The base uses a Picatinny interface built to MIL-STD-1913 and STANAG 4694 dimensions, so it works with a broad selection of compatible rings. That gives the rifle more flexibility than many direct-mount arrangements, especially when setting up for different scope sizes or eye-relief requirements. Its aluminium construction keeps weight down, which suits a handy rimfire rifle, while still providing the stiffness needed to keep the optic platform stable.

MDT also shapes the underside to sit flush on the receiver and match the ejection-port geometry, which helps the base mount cleanly and align properly with the action. The black anodized finish adds wear resistance and a subdued appearance that fits both hunting optics and range setups. Overall, this model is a straightforward choice for a Ruger American Rimfire that is being set up with a scope for repeatable zero and more usable elevation adjustment.

About MDT

MDT Sporting Goods was established in 2009 and began in Chilliwack, British Columbia, Canada. The company focuses on rifle chassis systems and related shooting accessories, including stocks, magazines, bipods, scope bases, and scope rings. MDT identifies the TAC21 as its first chassis, and that early emphasis on modular rifle support equipment still defines the brand’s place in the shooting market.

Today, MDT designs, manufactures, and sells products for target shooting and hunting, with development shaped by input from competitive precision shooters. That background is especially relevant to products such as scope bases, where alignment, repeatability, and compatibility matter as much as simple fit. MDT’s scope bases are made to MIL-STD-1913 and STANAG 4694 specifications and are CNC-machined from 6061-T6 aluminum, reflecting the company’s practical, precision-oriented approach to rifle accessories.

Main Features

• Manufacturer: MDT
• Mount series: MDT Picatinny Bases
• Made in: Canada
• Material: Aluminium
• Color: Black
• Inclination: 20 MOA
• Compatibility above: Picatinny Rail
• Compatibility below: Marlin 917, Marlin 982, Marlin 983, Marlin XT-17, Marlin XT-22, Mossberg Plinkster, Ruger American Rimfire, Ruger Model 96 series, Winchester Model 9422, Winchester Model 61

Warranty

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