MDT ACC Premier Gen2 Chassis Base, Ruger American - Rimfire

• Competition-focused chassis geometry: The ACC Premier Gen2 is built around practical positional shooting needs, giving a Ruger American Rimfire a more stable, repeatable platform for barricades, bags, and prone stages.
• Adjustable balance concept: The ACC name stands for Adjustable Core Competition, and the chassis is designed to accept weight tuning so the rifle can be balanced to suit stage movement, recoil behavior, and shooter preference.
• Rigid aluminium construction: Its aluminium body adds stiffness and consistency, helping the action sit in a solid platform that supports precise shot placement and dependable handling over long match days.
• AICS magazine compatibility: Compatibility with AICS-pattern magazines supports a competition-oriented setup, making reloads and magazine changes more practical for rimfire precision use.
• Modular interface layout: With an XTN buttstock interface and compatibility with AR-15 style grips, the chassis gives shooters broad freedom to configure fit and control around their preferred accessories.

About the MDT ACC Premier Series

MDT ACC Premier stands for Adjustable Core Competition, which describes the series’ central idea: a competition chassis that lets shooters tune rifle balance instead of accepting a fixed feel. MDT developed the line with input from competitive precision shooters, so the design priorities are stability on props, predictable handling, and a layout that supports repeatable shooting positions under match pressure.

Within MDT’s chassis range, the ACC Premier sits as a purpose-built option for shooters who want a dedicated competition platform rather than a general hunting stock. The series uses a weight-tuning concept to shift balance where the shooter needs it, and the forend includes M-LOK attachment points for accessories and compatible weights. The GEN2 update brought a 15-inch forend and support for both internal and external weights, giving the platform more flexibility for modern precision-rifle setups. In practical use, that means the series is aimed at PRS-style and NRL-style shooting, where rifle balance, barricade support, and modular accessory mounting matter as much as raw accuracy.

About the MDT ACC Premier Gen2 Chassis Base, Ruger American - Rimfire

The MDT ACC Premier Gen2 Chassis Base, Ruger American - Rimfire adapts the ACC competition concept to a rimfire action, giving shooters a chassis intended for training, match use, and positional precision shooting with lower recoil and lower ammunition cost. That makes it especially relevant for rimfire competition formats and for centerfire shooters who want a trainer with similar handling characteristics.

The chassis uses an aluminium construction to provide a rigid bedding platform, which helps the rifle feel more consistent from stage to stage and supports precise follow-up shots from improvised positions. Its 333.00 mm length and 998.00 g weight keep the base substantial enough for competition use while still leaving room for the shooter to tune the final setup with compatible accessories. The 31.75 mm maximum barrel diameter gives clearance for heavier target-style barrels often chosen for rimfire precision builds.

MDT also designed this model around modular fitment. The XTN Interface allows the use of compatible buttstocks, while support for AR-15 style grips and MDT pistol grips makes it easier to tailor grip angle and hand position to the shooter’s technique. AICS magazine compatibility supports a competition-oriented feeding setup, and the non-folding layout favors simplicity and rigidity. Altogether, this chassis base is aimed squarely at shooters who want a Ruger American Rimfire configured more like a dedicated match rifle than a conventional sporting 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 identifies the TAC21 as its first chassis, and that early focus on modular rifle platforms still defines the brand today.

MDT is best known for products that help shooters configure rifles around a specific purpose, whether that is competition, field use, or general precision shooting. Its range includes chassis systems, stocks, magazines, bipods, scope bases, and scope rings, and the company states that its chassis, magazines, and accessories are developed with input from competitive precision shooters. That background is especially relevant to the ACC Premier family, which reflects MDT’s emphasis on modularity, balance tuning, and practical match ergonomics.

Main Features

• Manufacturer: MDT
• Series: MDT ACC Premier
• Made in: Canada
• In production since: 2025
• Material: Aluminium
• Weight: 998.00 g
• Length: 333.00 mm
• Min. Forend Length: 142.00 mm
• Max. Forend Length: 142.00 mm
• Buttstock Interface: XTN Interface
• Max. Barrel Diameter: 31.75 mm
• Foldable: No
• Application: Competition
• Magazine Compatibility: AICS Magazine Compatible
• Grip Compatibility: AR-15 Style Grips, MDT Pistol Grips

Warranty

MDT provides a 2-year warranty for this chassis. That period matches the stated warranty for the product and gives clear coverage in years without relying on broader non-numeric warranty language.