New LS22 Rimfire Chassis from MDT

Canadian manufacturer Modular Driven Technologies has announced their new LS22 chassis for rimfire rifles.

The most obvious feature for a chassis like this is compatibility with AR-15 furniture, but MDT says the V-shaped bedding of their system can increase accuracy of your factory rifle by up to 21%. That’s a pretty specific number, so I’d love to read more about how they got it.

The barrel also becomes free-floated with this system, and can accommodate heavy barrels up to 1″ in diameter. One of the big changes with these rimfire versions is that you can continue to use your factory magazines. Most chassis systems require you to switch to an ACIS pattern magazine when feeding your standard Rem700 or Tikka T3.

There are versions of the new LS22 chassis that will fit:

  • Ruger American
  • CZ 455
  • Browning T-Bolt
  • Savage Mark II
  • Anschutz Match 54
  • Anschutz Match 64

Right now the LS22 is only available in right handed configuration and Black or FDE, but based on their previous offerings a left-handed version shouldn’t be too far off.

There are a few notes specific to different rifle models too. Namely that Savage Mark II, CZ 455 and Ruger American can still use their iron sights, but that the T-Bolt and the Ruger American will need some extra OEM components to fit the chassis.


You might recognize MDT from Remington’s Model 700 Tactical Chassis rifle or Mossberg’s MVP LC rifles. They essentially produce a heavy and light chassis for every major bolt gun model under the sun, and have seen adoption by many manufacturers.

But the still sell aftermarket chassis systems to the public. The LS22 is apparently available now for $399 CAD ($299 USD)

Edward O

Edward is a Canadian gun owner and target shooter with a Bachelor’s Degree in Journalism. Crawling over mountains with tactical gear is his idea of fun. He blogs at TV-Presspass and tweets @TV_PressPass.


  • iksnilol

    Are AICS .22 LR mags even a thing?

  • Nick

    These are excellent (albeit heavy) stocks. It will markedly improve the accuracy of a factory rifle (or at least it did on my Rem 700 20″). They’re fairly comfortable too.

    And don’t gripe too much about the mag. Most of the rifles they’re for have internal box mags, and if you don’t like the cost of an AICS mag, just buy one of MDT’s polymer version for about half the price.

    The only downside is some don’t allow for fixed AR stocks. The LSS models require a T6 buffer and index with a set screw. I believe the HS3 and LSS-XL allow for fixed stocks.

  • For $400, no thank you… 0_0

    • Adam W

      Pay in USD and save $100.00

    • Mike N.

      Their website says $400. There’s no indication whether it’s USD or CAD, except for the fact that their area code is for British Columbia. Kinda bad site design, I’m ready to pull the trigger and order one at $300USD.

      • petergun

        actually, two different sites: US and Canada.

        In essence, Canadians get a “rebate”, as they can buy the parts in Canadian dollars for the same listed number.

  • Edeco

    Hmmm, when my skills outgrow the scope on my modern assaulting rifle in 2 years or so, may use it and one of these stocks to ninj up a CZ455. It makes economic sense to spend $700 to keep using an old scope due to reasons.