MDT Buttstock Interface LSS Gen3, XTN

• XTN Interface Conversion: This buttstock interface lets an MDT LSS GEN3 chassis accept XTN-pattern buttstocks, making it easier to tailor a rifle for compact field use, a more traditional rear-end feel, or a precision-oriented stock setup.
• Modular Rear-End Setup: The interface is built around the modular design of the LSS GEN3 platform, so the back end of the rifle can be changed without disturbing the barreled action, helping preserve the rest of the setup while adapting the stock configuration.
• Machined Aluminum Construction: Made from 6061 aluminum, the interface adds a durable connection point without unnecessary bulk, giving the rifle a solid mounting surface for repeated use and stock changes.
• Cerakote Finish: The Cerakote finish helps protect the adapter from wear and handling marks, which matters on a rifle component that is regularly installed, removed, and paired with other chassis parts.
• Lightweight Chassis Upgrade: At 0.37 lbs in the XTN version, it adds the required buttstock mounting interface with minimal effect on overall rifle balance, which is useful when building a practical hunting or range rifle.

About the MDT Accessories Series

MDT Accessories sits alongside the company’s chassis and magazine lines as the part of the range focused on refining rifle fit, balance, and configuration. Rather than being limited to one type of add-on, the series covers a broad mix of components, including M-LOK parts, weights, magazine accessories, buttstock accessories, bolt knobs, and other rifle setup parts. That makes the series especially relevant to shooters who want to tune a rifle around a specific role instead of accepting a fixed configuration.

A defining trait of the series is its emphasis on adjustment and compatibility. Some accessories are designed to alter weight distribution, while others change the way the rifle fits the shooter or how a chassis accepts additional components. In practice, that means the range supports both precision-oriented competition builds and practical hunting setups where ergonomics and carry characteristics matter just as much as raw rigidity. Within that broader family, buttstock-related accessories such as interfaces and weights play an important role by helping shooters adapt one chassis platform to different stock styles and rear-end layouts.

About the MDT Buttstock Interface LSS Gen3, XTN

The MDT Buttstock Interface LSS Gen3, XTN is a chassis adapter made for shooters who want to configure an MDT LSS GEN3 around the XTN buttstock standard. Its role is straightforward but important: it creates the correct rear mounting point so the chassis can accept compatible XTN buttstocks. That gives the rifle builder more freedom to choose the stock style that best suits the intended use, whether the goal is a lighter field rifle, a more adjustable precision setup, or a different handling balance at the rear of the chassis.

Because the LSS GEN3 platform is built around modularity, this interface is useful well beyond a one-time installation. It supports the idea of changing the rifle’s rear-end configuration as needs evolve, without replacing the chassis itself. For shooters who move between hunting and range use, that flexibility matters in practice: the same rifle can be adapted to a different stock geometry or accessory ecosystem while keeping the core chassis system in place.

The interface uses 6061 aluminum construction with a Cerakote finish, combining low weight with the durability expected from a hard-use rifle part. At 0.37 lbs in the XTN version, it adds the required mounting structure without making the rifle feel unnecessarily rear-heavy. As an adapter in the rifle stock system, its value lies in fitment, simplicity, and compatibility: it is the component that opens the LSS GEN3 chassis to MDT’s XTN-compatible buttstock options.

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 equipment for target shooting and hunting, with a product range that includes chassis, magazines, buttstocks, bipods, scope bases, scope rings, and accessories. MDT identifies the TAC21 as its first chassis, which reflects the company’s long-standing concentration on modular rifle platforms.

MDT’s development approach is closely tied to practical shooting use. The company states that its chassis, magazines, and accessories are developed with input from competitive precision shooters, which helps explain the emphasis on adjustability, compatibility, and repeatable fit found across the range. For products such as buttstock interfaces and chassis accessories, MDT is known for building parts that let shooters configure a rifle around a specific purpose rather than a fixed factory layout.

Main Features

• Manufacturer: MDT
• Series: MDT Accessories
• Product type: Buttstock interface adapter
• Compatible platform: MDT LSS GEN3 chassis
• Buttstock interface: XTN
• Accessories for: Rifles
• Material: 6061 aluminum
• Finish: Cerakote
• Weight: 0.37 lbs
• Made in: Canada

Warranty

2 years. MDT specifies a 2-year warranty for this product, covering the adapter as a rifle accessory component.

In the Box

• MDT Buttstock Interface LSS Gen3, XTN
• Installation hardware