MDT CZ 457 LSS Gen3 Worker Chassis – Flat Dark Earth
The MDT LSS Gen3 Worker 115020-FDE gives the CZ 457 a compact, modular aluminum chassis built for shooters who want precision-rifle capability without the size and weight of a dedicated competition setup.
Configured with the shorter LSS Gen3 forend, comfortable polymer side panels, and MDT's adjustable CCS Composite Carbine Stock, the Worker emphasizes portability, practical handling, and modularity.
It is a strong fit for rimfire hunting, field rifles, compact precision builds, training rifles, and general-purpose CZ 457 setups.
Build Out Your CZ 457
Built Specifically for the CZ 457
The 115020-FDE is configured for the right-hand CZ 457.
The LSS Gen3 center section provides a rigid aluminum foundation for the CZ action while retaining the rifle's factory rimfire magazine system.
For shooters starting with a CZ 457 Varmint, Pro Varmint, MTR, or another compatible configuration, the Worker provides a modern chassis foundation without forcing the rifle into a full competition format.
The Field-Oriented LSS Gen3
The Worker takes a different approach than the LSS Gen3 Competitor.
Instead of a long match-oriented forend, the Worker uses a shorter, slimmer forend and compact CCS buttstock.
That keeps the rifle easier to carry, quicker to handle, and more practical for hunting and field use while retaining the modularity of the LSS Gen3 system.
Flat Dark Earth Finish
The Flat Dark Earth finish gives the 115020-FDE a practical field-oriented appearance that pairs naturally with black, stainless, bronze, and other earth-tone components.
It is especially well suited to hunting, small-game, predator-control, and general-purpose rimfire builds where portability and practical handling matter.
6061 Aluminum Chassis Foundation
At the center of the system is a rigid 6061 aluminum chassis supporting the CZ 457 action.
The aluminum structure provides the stiffness expected from a modern precision chassis while giving the rifle a much more modular foundation than a conventional stock.
For shooters upgrading from a factory stock, the Worker adds accessory mounting and adjustable ergonomics without unnecessary bulk.
Compact LSS Gen3 Forend
The Worker uses the shorter LSS Gen3 forend to keep the rifle compact and easy to maneuver.
Polymer side panels create a comfortable gripping surface and help isolate the shooter's hand from temperature extremes associated with exposed aluminum.
The shorter profile makes the Worker particularly useful for field rifles, rimfire trainers, compact barrel setups, and rifles intended to be carried more than a dedicated match rifle.
M-LOK Accessory Mounting
The Worker provides M-LOK accessory mounting for bipods, sling hardware, accessory rails, and other compatible equipment.
That allows the rifle to remain simple when desired while still giving the shooter room to add the support equipment commonly used on hunting and precision rimfire builds.
MDT CCS Composite Carbine Stock
The Worker configuration uses MDT's CCS Composite Carbine Stock, combining adjustable shooter fit with a compact rear profile.
The CCS provides an adjustable cheek riser and spacer-adjustable length of pull, allowing the rifle to be fitted around the shooter and optic rather than forcing the shooter to adapt to a fixed stock.
Its composite construction also keeps the rear of the rifle comfortable for field and recreational use.
Adjustable Shooter Fit
Modern CZ 457 builds often use larger optics and taller mounting systems than traditional sporting rifles.
The adjustable cheek riser allows the shooter to establish a more natural and repeatable eye position behind the scope.
Spacer-adjustable length of pull further helps tailor the rifle to different shooters, clothing thicknesses, and shooting positions.
Factory CZ 457 Magazine System
The CZ 457 Worker retains the factory CZ rimfire magazine system.
It does not convert the rifle to centerfire AICS magazines.
Shooters can continue using compatible CZ 457 factory-pattern magazines while gaining the ergonomics, modularity, and accessory mounting of the LSS Gen3 chassis.
Built for Rimfire Hunting & Field Use
The Worker is particularly well suited to CZ 457 rifles used for small-game hunting, pest control, and general field use.
The compact forend keeps the rifle manageable, the adjustable stock improves shooter fit, and the M-LOK interface provides room for a bipod or sling without turning the rifle into a heavy match setup.
It gives the CZ 457 many of the advantages of a modern precision chassis while retaining practical portability.
Precision Trainer & Range Rifle
The LSS Gen3 Worker also makes an excellent foundation for a precision rimfire trainer.
Its chassis-style ergonomics, adjustable stock, and modular accessory system allow shooters to build a CZ 457 with many of the handling characteristics of a larger centerfire precision rifle.
That makes it useful for positional practice, fundamentals training, recreational long-range rimfire, and general range use.
LSS Gen3 Modularity
Although the Worker starts as a compact field-oriented configuration, it remains part of the LSS Gen3 modular ecosystem.
Compatible forends, stocks, grips, and accessories can be changed as the rifle's role evolves.
A rifle that begins as a lightweight field build can later move toward a more competition-oriented configuration without replacing the central chassis system.
Worker vs. Competitor
The LSS Gen3 Worker and LSS Gen3 Competitor share the same modular design philosophy but are optimized for different jobs.
The Worker emphasizes compact size, portability, simplicity, and field handling.
The Competitor uses a longer, wider ARCA-equipped forend and is better suited to PRS Rimfire, NRL22-style, and dedicated positional competition.
For shooters who want a CZ 457 that remains easy to carry and practical outside of competition, the Worker is the more natural configuration.
Why Purchase from Pete's Pillars
Pete's Pillars is an authorized MDT dealer with extensive experience supplying components for CZ 457 and precision rimfire builds.
We stock chassis systems, rails, bolt components, springs, replacement parts, bipods, and accessories for building around the CZ 457 platform.
Product Details
- Manufacturer: MDT
- Product Line: LSS Gen3
- Configuration: The Worker
- Part Number: 115020-FDE
- Platform: CZ 457
- Handedness: Right Hand
- Color: Flat Dark Earth
- Chassis Material: 6061 Aluminum
- Magazine Compatibility: Factory CZ 457 Rimfire Magazines
- Forend: Compact LSS Gen3 Worker Forend
- Forend Panels: Polymer
- Accessory Interface: M-LOK
- Buttstock: MDT CCS Composite Carbine Stock
- Cheek Riser: Adjustable
- Length of Pull: Spacer Adjustable
- Intended Use: Hunting, Field Use, Training and Recreational Precision Shooting
Rifle, barreled action, optic, magazine, bipod, and other accessories are not included unless specifically stated with the product configuration.
Pete's Pillars is an authorized MDT dealer.
