MDT LSS Rimfire Chassis System



Type: Hunting

  • The LSS-RF (Rimfire) Chassis is based on our popular LSS Chassis system for rimfire rifles. The LSS-RF also fits 17 HMR or 22 WMR versions.


    The LSS-RF chassis system for .22LR caliber rifles is lightweight and compact, and adopts the same footprint as the LSS. You will notice a significant improvement in accuracy due to the V-shaped bedding and free floated forend, which allows for barrel contours up to 1" in diameter.


    The chassis system is manufactured out of billet 6061-T6 aluminum, and has been finished with Cerakote™ in Black or Flat Dark Earth (FDE).


    To keep this chassis system compact, we have designed it to take carbine AR-15 buttstocks. Fixed buttstocks can also be mounted with the use of a fixed stock adapter.


    The LSS-RF uses the factory magazine, and each chassis is compatible with all factory barrel contours.


    Because we have lowered the buttstock interface, The Savage Mark II, CZ 455 and Ruger American can use iron sights with this chassis. If you are using a scope, we recommend a stock with a cheek riser.



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


    Ruger American

    CZ 455

    CZ 452

    Browning T-Bolt

    Savage Mark II - compatible with 93R17

    Anschutz Match 54 - compatible only with models 1710 and 1712

    Anschutz Match 64 - compatible only with models 1416 and 1417

    The LSS-RF now also fits 17 HMR or 22 WMR versions and will fit all heavy factory barrels.



    The Ruger American requires the two OEM fixing components in addition to the magazine

    The Browning T-Bolt requires the OEM magazine holder in addition to the magazine

    The Savage Mark II, CZ 455 and Ruger American can use iron sights

    The CZ455 will not work with the CZ455 Tuning trigger


    The LSS-RF chassis is designed to accept any AR-15 carbine buttstock and pistol grip (purchased separately), and allows for customization with a wide variety of accessories.


    Mounting holes are spaced for Magpul style L5 (11 slots), and L3 (7 slots) rails (1.600” / 3.200”) to be used on the bottom of the forend and are compatible with our Aluminium Picatinny Rails with Flush Cup Sling Mounts.



    Up to 21% increase in accuracy

    CNC Machined from 6061 aluminum

    Cerakote Finish (in Black or Flat Dark Earth)

    Hole spacing for Magpul L5 (11 slots) and L3 (7 slots) rails

    Designed for carbine AR-15 buttstocks

    Accepts AR-15 pistol grips

    Lightweight, free-floating modular forend

    Accommodates barrels up to 1" diameter.

    Length of pull of 11.5”-14.75” (based on Hogue stock)

    Compatible with OEM Magazines

    Weight: 1.6lb - 1.8lb


    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.