LSS-XL (Gen2) – Fixed Interface

$899.90$1,099.89 incl. GST

Fixed Buttstock Interface*

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.
*Requires Buttstock and Grip
SKU: LSS-XL GEN2 - Fixed Category: Tags: , ,

The Gen2 upgraded LSS-XL chassis 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 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
  • 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
Weight N/A
Dimensions N/A
Action Type

Rem700 SA, Rem700 LA, Savage SA, Savage LA, Tikka T3 SA, Tikka T3 LA, Howa 1500 SA, Howa 1500 LA


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