MDT LSS-XL Gen2 Chassis System

MDTSKU: 5037852810252

Sale price€995.00
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Increase accuracy and ergonomics of your rifle with our LSS-XL Gen2 chassis system. The LSS-XL Gen2 is a longer and more feature-rich version of our LSS chassis system. The LSS-XL Gen2 has been updated with a bold, modern new look inspired by the popularity of the ESS chassis line, while maintaining and improving upon the overall aesthetic of an MDT chassis.


The LSS-XL Gen2 allows you to convert your bolt action rifle to a highly versatile rifle allowing you to adjust the ergonomics with the use of AR-15 buttstocks and grips, and at the same time converting it to an external box magazine fed rifle. Shoot Better.


The LSS-XL Gen2 comes in a FIXED or CARBINE option depending on buttstock preference. Read more information about FIXED and CARBINE interfaces.



The original LSS-XL Gen2 chassis system was designed as a variant of our highly popular LSS chassis. The LSS chassis was designed for use with compact, short barrelled rifles. Many customers liked the LSS chassis, but wanted to use a fixed buttstock, and get their bipod out further forward.


This prompted us to design the first-generation LSS-XL chassis system, which has a forend extended by 3" and was designed to accept fixed rifle stocks without the need of using any adapters.


After the successful launch of our ESS chassis system, requests started pouring in for the new features that had been introduced on the ESS chassis to be rolled out on our other chassis systems. In response, we have upgraded our LSS-XL chassis line with a Gen2 lineup that incorporates the following new features:


Bold, modern new look

Ambidextrous magazine release

Thumbrest above trigger guard

Larger barrel channel to accommodate barrels up to the diameter of the action

M-Lok pattern attachment slots on all five sides of the forend

Barricade-stop grooves ahead of mag-well

Side-relieved mag well to accommodate bulging magazines

Carbine and fixed buttstock interface options

The chassis is designed with V-shaped bedding surfaces, allowing you to drop your rifle right in without the need for additional bedding. The bottom profile of the V-block cutout has been kept round and close to the action without making contact, maintaining maximum strength. The LSS-XL Gen2 chassis will free float barrels up to 1.350” diameter.



The MDT LSS-22 chassis system is currently manufactured for the following bolt action rifle platforms:


CZ 527 .223

Howa 1500 LA

Howa 1500 SA

Howa Mini

Remington 700 SA

Remington 700 LA

Ruger American SA

Ruger American SA AR

Savage LA

Savage SA

Tikka T3 LA

Tikka T3 SA



The LSS-XL Gen2 chassis are designed to accept any AR-15 buttstock and pistol grip (purchased separately), offering the option to customize from the wide variety of Accessories available on the market.


The LSS-XL Gen2 chassis accepts AICS-pattern external box magazines, and supports the installation of M-Lok patterned accessories along the forend.


Note: Long action magazines come in 4 different lengths: 3.560”, 3.715", 3.775" and 3.850". Unless otherwise specified, our long action chassis use 3.715 length magazines.


The chassis will accept recoil lugs up to .350" (8.9mm) thick.



Increases accuracy by up to 21%

CNC Machined from 6061 Aluminum

Cerakote finish in Black or Flat Dark Earth

M-Lok pattern attachment system on all 5 faces of the forend

Carbine buttstock interface option designed for carbine AR-15 buttstocks, including the MDT Skeleton Carbine Stock

Fixed buttstock interface option designed for fixed AR-15 buttstocks, optimally the MDT Skeleton Rifle Stock V5

Accepts most AR-15 Pistol Grips

Lightweight, free-floating modular forend

Will accommodate barrels up to 1.350" diameter

Compatible with AICS style magazines

Weight: 1.6lb - 2.0lb, depending on the rifle model


The LSS-XL Gen2 chassis system comes as a 1-piece chassis, with all required mounting hardware included. This includes new action screws, and a screw for the pistol grip.


To complete this chassis on your rifle, the additional items you need to purchase are:


Any AR-15 buttstock.

A buffer tube for your buttstock. (Both mil-spec and commercial work on our chassis)

An AR-15 Pistol Grip. For fixed interface chassis, a grip without a beavertail, or with a soft (bendable) beavertail must be used.

At least one magazine


Please Note: Orders for MDT Chassis Systems require up to 3 weeks for delivery as all orders are made to custom. Give us a call and we will add any customisation you need.

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