SKU
LSS-RF Chassis System
Rating:
97% of 100
As low as US$399.00

Our 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.

LSS-RF Gen2 Chassis System

The LSS-RF next generation has arrived!

Created for popular .22LR caliber rifles, the LSS-RF Gen2 brings the addition of the following new features:

  • M-Lok pattern attachment slots on sides and bottom of the forend
  • Barricade-stop grooves ahead of mag-well
  • Side-relieved mag well

Estimated Release Dates

Savage B22 July 31st, 2019
Savage Mark II August 15th, 2019

Details

Our 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.

Compatibility

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

  • Ruger American
  • Savage A22
  • Savage B22
  • CZ 455
  • Savage Mark II - compatible with 93R17

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

Important Notes

  • The Ruger American requires the two OEM fixing components 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

Mounting and Compatible Accessories

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.

Specifications

  • Up to 21% increase in accuracy
  • CNC Machined from 6061 aluminum
  • Cerakote Finish (in Black or Flat Dark Earth)
  • M-LOK compatible
  • 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: 1.4lb - 1.6lb

What You Get, and What You Need

The LSS-RF 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 install this chassis on your rifle, here are some additional items you will need to purchase:

Installation Videos