MDT ACC Premier Gen2 Chassis Base, CZ 457

• Competition-focused balance: The ACC Premier Gen2 chassis is built around the Adjustable Core Competition concept, allowing the rifle to be set up for a steadier hold and more neutral balance in positional and barricade shooting.
• Rigid aluminium construction: The aluminium chassis gives the CZ 457 a stable bedding platform that helps maintain consistency while standing up to heavy match use and repeated accessory changes.
• Arca and M-LOK forend: With an integrated competition-oriented forend interface, the chassis supports fast tripod, bipod and accessory setup without forcing compromises in mounting options.
• XTN buttstock interface: The rear interface gives the build flexibility for compatible buttstock setups, making it easier to configure the rifle around shooting style, fit and match discipline.
• Built for rimfire competition: Designed for the CZ 457 and intended for competition use, this chassis brings the layout and accessory support of a centerfire match rifle to a popular precision rimfire platform.

About the MDT ACC Premier Series

MDT ACC Premier stands for Adjustable Core Competition, and the series is built specifically for shooters who want a chassis system centered on rifle balance, positional control and match adaptability. Developed by MDT with input from competitive shooters, the ACC Premier line sits in the company’s competition-focused range and is aimed at precision-rifle disciplines where a rifle’s handling can matter as much as raw accuracy. Rather than treating weight as an afterthought, the series is designed around adjustable weight placement so the rifle can be tuned to the shooter, the stage and the support method.

In its GEN2 form, the series uses a 15-inch forend and supports both internal and external weights, giving shooters more freedom to shift balance forward or rearward as needed. The forend also includes M-LOK attachment points for accessories and additional weighting solutions. Within MDT’s lineup, the ACC Premier series is intended for dedicated competition rifles rather than lightweight field builds, prioritizing stability, support compatibility and a layout that works well from barricades, bags and tripods. The current GEN2 family includes versions for several rifle actions, including rimfire platforms such as the CZ 457.

About the MDT ACC Premier Gen2 Chassis Base, CZ 457

The MDT ACC Premier Gen2 Chassis Base, CZ 457 brings a true competition-style chassis layout to one of the most widely used precision rimfire actions. Built for competition, it gives the CZ 457 a more stable and configurable foundation than a conventional stock, which is especially useful in rimfire matches that mirror centerfire positional shooting. The aluminium construction helps create a rigid interface between action and chassis, supporting repeatable performance while also standing up to the hard use, transport and frequent setup changes common in match environments.

A major part of this model’s appeal is its 381.00 mm forend with both Arca and M-Lok interfaces. In practice, that means faster movement between bipods, tripods and barricade supports, while still leaving room for accessories and competition-oriented weight tuning. The chassis also accepts AR-15 style grips, which makes it easier to tailor grip angle and hand position to personal preference. At the rear, the XTN Interface provides compatibility with suitable buttstock solutions, allowing the rifle to be configured around fit and shooting style. With support for a 31.75 mm maximum barrel diameter, the chassis is also suited to heavier rimfire barrel profiles often chosen for stability and heat management during extended strings of fire.

At 1633.00 g and 610.00 mm in length, this chassis is clearly aimed at shooters who value control and consistency over minimum carry weight. For a CZ 457 match build, that translates into steadier tracking, more planted support on props and a setup that better reflects the ergonomics of a full-size precision rifle.

About MDT

MDT Sporting Goods was established in 2009 and began in Chilliwack, British Columbia, Canada. The company designs, manufactures and sells rifle chassis systems, magazines, buttstocks and accessories for target shooting and hunting, with its head office remaining in British Columbia. MDT is particularly known for products that adapt factory rifle actions to more modular, competition-oriented and precision-focused configurations.

A defining part of the company’s identity is its emphasis on practical shooter input. MDT states that its chassis, magazines and accessories are developed with feedback from competitive precision shooters, which is especially relevant in products such as the ACC Premier series. The company identifies the TAC21 as its first chassis, and its current range extends across chassis systems, stocks, magazines, bipods, scope bases and scope rings. In this category, MDT has built its reputation around modularity, fit adjustment and support for precision rifle applications.

Main Features

• Manufacturer: MDT
• Series: MDT ACC Premier
• Made in: Canada
• In production since: 2025
• Material: Aluminium
• Weight: 1633.00 g
• Length: 610.00 mm
• Forend length: 381.00 mm
• Forend type: Arca, M-Lok
• Buttstock interface: XTN Interface
• Maximum barrel diameter: 31.75 mm
• Foldable: No
• Application: Competition
• Grip compatibility: AR-15 Style Grips

Warranty

2 years. MDT states a 2-year warranty for this chassis, providing defined coverage for the product over that period.