MDT LSS Gen3 STS Buttstock

• Traditional stock feel on a modular chassis: The STS Buttstock gives the MDT LSS GEN3 chassis a more classic rifle profile, helping shooters who prefer familiar stock ergonomics keep a natural head position and steadier rear support.
• Adjustable fit for repeatable shooting: Length-of-pull spacers and an adjustable foam cheek piece make it easier to set the rifle to the shooter, which supports more consistent eye alignment and shot-to-shot comfort.
• Secure grip in field conditions: The rubber-overmolded grip improves purchase when hands are wet, cold, or gloved, helping maintain control during hunting and practical rifle use.
• Accessory-ready rear section: Integrated M-LOK and QD sling mounting points make it easier to configure the rifle for sling carry or rear support accessories without adding unnecessary bulk.
• Purpose-built LSS GEN3 compatibility: Designed specifically for the MDT LSS GEN3 platform, this buttstock matches the chassis system’s modular concept while preserving the rigidity expected from a precision-oriented setup.

About the LSS GEN3 Series

The MDT LSS GEN3 series sits in the company’s modular chassis lineup as a platform that blends precision-rifle chassis function with a more adaptable approach to rifle setup. It is aimed at shooters who want the bedding consistency and accessory compatibility of a chassis, but who may not want the bulk or handling style of a full competition stock. That makes the series relevant for hunting rifles, practical field rifles, and general-purpose precision builds.

A defining trait of the series is its ability to accept different rear-end configurations, letting the shooter tune the rifle around weight, balance, transport needs, and preferred shooting position. In practice, that means the LSS GEN3 can be configured toward a more traditional stock feel or toward a more technical chassis-style layout, depending on the buttstock selected. The design philosophy focuses on modularity, rigid construction, and a shooting position that can be adjusted to the user rather than forcing the user to adapt to the rifle. For shooters building a modern bolt-action system, the series offers a practical middle ground between classic rifle handling and the consistency benefits of a chassis.

About the MDT LSS Gen3 STS Buttstock

The MDT LSS Gen3 STS Buttstock is built for shooters who want the mechanical consistency of a chassis rifle without giving up the feel of a more conventional stock. On an MDT LSS GEN3 chassis, it changes the rifle’s rear-end ergonomics into something more familiar for hunting and field shooting, while still preserving the adjustability that matters for precision work. That combination is especially useful for shooters moving from traditional stocks into chassis systems, or for anyone who wants a rifle that carries and mounts naturally from improvised positions.

The stock uses a composite body with a rubber-overmolded grip, giving the rear of the rifle a warmer, more secure contact surface than a bare metal structure. In practical use, that helps maintain control in rain, cold weather, or when shooting with gloves. The adjustable foam cheek piece and 12.32" – 13.32" length of pull range let the rifle be fitted to optic height, clothing layers, and shooting style, which supports a more repeatable cheek weld and sight picture. Integrated M-LOK and QD sling mounting points add useful flexibility for carry and support accessories, while the stock’s dedicated fit for the LSS GEN3 keeps the installation clean and purpose-built. At 2.06 lbs (33.0 oz), it adds substantial rear support without turning the rifle into an overly specialized bench setup.

About MDT

MDT Sporting Goods was established in 2009 and focuses on products for target shooting and hunting. The company designs and manufactures rifle chassis systems, magazines, buttstocks, and related accessories, with a product range that also includes bipods, scope bases, and scope rings. MDT began in Chilliwack, British Columbia, Canada, and its head office remains in British Columbia.

A key part of MDT’s identity is its concentration on modular rifle systems shaped by practical shooting use. The company identifies the TAC21 as its first chassis, and it states that its chassis, magazines, and accessories are developed with input from competitive precision shooters. That background is reflected in products such as the LSS GEN3 STS Buttstock, which combine adjustability and compatibility with field-oriented ergonomics rather than treating the rifle purely as a competition platform.

Main Features

• Manufacturer: MDT
• Product type: Hunting chassis buttstock
• Compatibility: MDT LSS3 No Interface
• Material: Aluminium
• Made in: Canada
• Weight: 2.06 lbs (33.0 oz)
• Dimensions: 13.25" x 1.87" x 5.17"
• Length of pull (LOP): 12.32" – 13.32" (adjustable via spacers)
• Cheek rest adjustments: Height: 0.85”; Front-Back: 0.18”

Warranty

The MDT LSS Gen3 STS Buttstock is covered by a 2-year warranty.

In the Box

• MDT LSS Gen3 STS Buttstock
• LOP spacers (x4)
• Installation hardware