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The MDT LSS Gen3 Competitor 115017-FDE turns the CZ 457 into a purpose-built precision rimfire competition platform with a wide Competition Forend, integrated ARCA interface, extensive M-LOK mounting, adjustable shooter fit, and the modular architecture of MDT's LSS Gen3 system.
Designed for PRS Rimfire, NRL22-style competition, positional shooting, long-range rimfire, and precision training, the Competitor kit is the match-oriented configuration of the LSS Gen3 family.
Instead of piecing together a chassis one component at a time, the Competitor package gives the CZ 457 a complete competition-focused foundation in Flat Dark Earth.
The 115017-FDE is specifically configured for the right-hand CZ 457.
The chassis provides a rigid 6061 aluminum foundation for the CZ rimfire action while retaining the rifle's factory detachable rimfire magazine system.
For shooters starting with a CZ 457 Varmint, MTR, Pro Varmint, or another compatible right-hand configuration, the LSS Gen3 provides the mounting surface, adjustability, and competition ergonomics needed to take the rifle well beyond a conventional factory stock.
The defining feature of the LSS Gen3 is its modular architecture.
The rifle action remains mounted in the center chassis section while compatible forends and rear configurations can be changed around it.
That means the platform can evolve without repeatedly removing the barreled action from its primary bedding interface.
A competition-oriented CZ 457 can therefore be reconfigured with different LSS Gen3 components as shooting requirements change without rebuilding the entire rifle around a different chassis.
The Competitor version of the LSS Gen3 is designed around positional and match shooting rather than minimum weight.
The centerpiece is MDT's Competition Forend, which provides a long, wide and flat support surface for barricades, bags, tripods, bipods, and other match equipment.
It gives the CZ 457 the kind of interface normally associated with dedicated centerfire competition rifles while remaining built specifically around the rimfire action.
The Competition Forend measures approximately 14.3 inches from the recoil-lug pocket, providing significantly more usable support area than a compact hunting-style chassis.
The wide, flat lower surface creates a stable footprint on barricades and bags and gives the shooter more room to position the rifle around different stages and support surfaces.
For positional rimfire matches, that extra forend length can make the rifle considerably easier to manage than a short sporter-style stock.
A near full-length integrated ARCA / RRS-style dovetail runs along the bottom of the Competition Forend.
This allows compatible bipods, tripod clamps, barricade equipment, and other ARCA-mounted accessories to slide and lock into position without requiring a separate bolt-on rail.
The ability to quickly reposition support equipment is especially useful in PRS Rimfire and NRL22-style stages where shooting positions can change from one obstacle to the next.
The Competition Forend also provides extensive M-LOK mounting along the sides and bottom.
Shooters can add weights, rails, sling hardware, data-board mounts, barricade accessories, and other equipment without giving up the integrated ARCA interface.
That gives the LSS Gen3 Competitor enough mounting flexibility to start simple and become more specialized as the shooter develops the rifle.
A competition chassis needs to do more than simply hold the barreled action.
The LSS Gen3 Competition Forend uses a wide, flat profile designed to sit predictably on barricades, bags, tank traps, rails, and other positional supports.
That wider footprint helps reduce unwanted rifle movement and gives the shooter a more repeatable interface with the support surface.
The 115017-FDE is particularly well suited to shooters building a CZ 457 for PRS Rimfire, NRL22-style matches, positional rimfire competition, and precision training.
The long ARCA-equipped forend makes tripod and bipod positioning straightforward, while the wide chassis profile provides useful support on barricades and bags.
The result is a CZ 457 that behaves more like a dedicated match rifle than a modified sporting rimfire.
The CZ 457 version 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 competition-oriented ergonomics and mounting capability of the LSS Gen3 chassis.
The Competition Forend provides clearance for barrels up to approximately 1.25 inches in straight diameter.
That leaves substantial room for the heavier barrel profiles commonly used on precision CZ 457 builds.
This makes the chassis well suited to factory heavy-barrel rifles as well as many custom-barrel competition builds.
The LSS Gen3 system is built around 6061 aluminum, providing the rigidity needed for a precision chassis while maintaining the modularity that defines the platform.
The FDE finish gives the chassis a durable factory-applied appearance and pairs naturally with black optics, barrels, bipods, weights, and other competition accessories.
One of the strongest reasons to choose the LSS Gen3 over a conventional one-piece chassis is the ability to change the rifle around the center section.
Compatible forends, stock interfaces, grips, weights, bridges, and other components can be added or changed as the rifle's role develops.
Because the action remains secured in the center base during many configuration changes, the shooter does not have to continually disturb the primary action-to-chassis interface simply to change the rifle's furniture.
Precision rimfire competition rifles often benefit from deliberate weight placement rather than simply minimizing total weight.
The LSS Gen3 Competition Forend provides M-LOK locations that can be used with compatible weights and accessories to tune how the rifle balances on barricades, bags, and other supports.
Shooters can keep the system relatively simple or progressively tune the rifle as their preferred balance point and match style become more defined.
The Competition Forend is designed to work with additional MDT competition accessories, including compatible ACC Control Bridge and NV Bridge systems.
That gives shooters room to add additional control surfaces, accessory mounting, or specialized equipment without abandoning the LSS Gen3 platform.
The LSS Gen3 Competitor is not simply another replacement stock for the CZ 457.
The Oryx offers a straightforward aluminum precision chassis, while the XRS combines chassis rigidity with more traditional stock ergonomics.
The LSS Gen3 Competitor moves further toward a dedicated modular match rifle with a long ARCA-equipped forend, extensive accessory mounting, and the ability to reconfigure major chassis components around the action.
Pete's Pillars is an authorized MDT dealer with extensive experience supplying components for CZ 457 and precision rimfire builds.
We stock the chassis systems, bolt components, rails, replacement parts, bipods, and accessories needed to build around the CZ 457 platform rather than treating the chassis as an isolated component.
For shooters building a CZ 457 specifically around competition and positional shooting, the LSS Gen3 Competitor provides one of MDT's most modular ways to build the rifle around that role.
Rifle, barreled action, optic, magazine, bipod, weights, bridges, and other accessories are not included unless specifically stated with the product configuration.
Pete's Pillars is an authorized MDT dealer.
The MDT LSS Gen3 Competitor 115017-FDE turns the CZ 457 into a purpose-built precision rimfire competition platform with a wide Competition Forend, integrated ARCA interface, extensive M-LOK mounting, adjustable shooter fit, and the modular architecture of MDT's LSS Gen3 system.
Designed for PRS Rimfire, NRL22-style competition, positional shooting, long-range rimfire, and precision training, the Competitor kit is the match-oriented configuration of the LSS Gen3 family.
Instead of piecing together a chassis one component at a time, the Competitor package gives the CZ 457 a complete competition-focused foundation in Flat Dark Earth.
The 115017-FDE is specifically configured for the right-hand CZ 457.
The chassis provides a rigid 6061 aluminum foundation for the CZ rimfire action while retaining the rifle's factory detachable rimfire magazine system.
For shooters starting with a CZ 457 Varmint, MTR, Pro Varmint, or another compatible right-hand configuration, the LSS Gen3 provides the mounting surface, adjustability, and competition ergonomics needed to take the rifle well beyond a conventional factory stock.
The defining feature of the LSS Gen3 is its modular architecture.
The rifle action remains mounted in the center chassis section while compatible forends and rear configurations can be changed around it.
That means the platform can evolve without repeatedly removing the barreled action from its primary bedding interface.
A competition-oriented CZ 457 can therefore be reconfigured with different LSS Gen3 components as shooting requirements change without rebuilding the entire rifle around a different chassis.
The Competitor version of the LSS Gen3 is designed around positional and match shooting rather than minimum weight.
The centerpiece is MDT's Competition Forend, which provides a long, wide and flat support surface for barricades, bags, tripods, bipods, and other match equipment.
It gives the CZ 457 the kind of interface normally associated with dedicated centerfire competition rifles while remaining built specifically around the rimfire action.
The Competition Forend measures approximately 14.3 inches from the recoil-lug pocket, providing significantly more usable support area than a compact hunting-style chassis.
The wide, flat lower surface creates a stable footprint on barricades and bags and gives the shooter more room to position the rifle around different stages and support surfaces.
For positional rimfire matches, that extra forend length can make the rifle considerably easier to manage than a short sporter-style stock.
A near full-length integrated ARCA / RRS-style dovetail runs along the bottom of the Competition Forend.
This allows compatible bipods, tripod clamps, barricade equipment, and other ARCA-mounted accessories to slide and lock into position without requiring a separate bolt-on rail.
The ability to quickly reposition support equipment is especially useful in PRS Rimfire and NRL22-style stages where shooting positions can change from one obstacle to the next.
The Competition Forend also provides extensive M-LOK mounting along the sides and bottom.
Shooters can add weights, rails, sling hardware, data-board mounts, barricade accessories, and other equipment without giving up the integrated ARCA interface.
That gives the LSS Gen3 Competitor enough mounting flexibility to start simple and become more specialized as the shooter develops the rifle.
A competition chassis needs to do more than simply hold the barreled action.
The LSS Gen3 Competition Forend uses a wide, flat profile designed to sit predictably on barricades, bags, tank traps, rails, and other positional supports.
That wider footprint helps reduce unwanted rifle movement and gives the shooter a more repeatable interface with the support surface.
The 115017-FDE is particularly well suited to shooters building a CZ 457 for PRS Rimfire, NRL22-style matches, positional rimfire competition, and precision training.
The long ARCA-equipped forend makes tripod and bipod positioning straightforward, while the wide chassis profile provides useful support on barricades and bags.
The result is a CZ 457 that behaves more like a dedicated match rifle than a modified sporting rimfire.
The CZ 457 version 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 competition-oriented ergonomics and mounting capability of the LSS Gen3 chassis.
The Competition Forend provides clearance for barrels up to approximately 1.25 inches in straight diameter.
That leaves substantial room for the heavier barrel profiles commonly used on precision CZ 457 builds.
This makes the chassis well suited to factory heavy-barrel rifles as well as many custom-barrel competition builds.
The LSS Gen3 system is built around 6061 aluminum, providing the rigidity needed for a precision chassis while maintaining the modularity that defines the platform.
The FDE finish gives the chassis a durable factory-applied appearance and pairs naturally with black optics, barrels, bipods, weights, and other competition accessories.
One of the strongest reasons to choose the LSS Gen3 over a conventional one-piece chassis is the ability to change the rifle around the center section.
Compatible forends, stock interfaces, grips, weights, bridges, and other components can be added or changed as the rifle's role develops.
Because the action remains secured in the center base during many configuration changes, the shooter does not have to continually disturb the primary action-to-chassis interface simply to change the rifle's furniture.
Precision rimfire competition rifles often benefit from deliberate weight placement rather than simply minimizing total weight.
The LSS Gen3 Competition Forend provides M-LOK locations that can be used with compatible weights and accessories to tune how the rifle balances on barricades, bags, and other supports.
Shooters can keep the system relatively simple or progressively tune the rifle as their preferred balance point and match style become more defined.
The Competition Forend is designed to work with additional MDT competition accessories, including compatible ACC Control Bridge and NV Bridge systems.
That gives shooters room to add additional control surfaces, accessory mounting, or specialized equipment without abandoning the LSS Gen3 platform.
The LSS Gen3 Competitor is not simply another replacement stock for the CZ 457.
The Oryx offers a straightforward aluminum precision chassis, while the XRS combines chassis rigidity with more traditional stock ergonomics.
The LSS Gen3 Competitor moves further toward a dedicated modular match rifle with a long ARCA-equipped forend, extensive accessory mounting, and the ability to reconfigure major chassis components around the action.
Pete's Pillars is an authorized MDT dealer with extensive experience supplying components for CZ 457 and precision rimfire builds.
We stock the chassis systems, bolt components, rails, replacement parts, bipods, and accessories needed to build around the CZ 457 platform rather than treating the chassis as an isolated component.
For shooters building a CZ 457 specifically around competition and positional shooting, the LSS Gen3 Competitor provides one of MDT's most modular ways to build the rifle around that role.
Rifle, barreled action, optic, magazine, bipod, weights, bridges, and other accessories are not included unless specifically stated with the product configuration.
Pete's Pillars is an authorized MDT dealer.
| Brand | MDT |
| Gun Platform | CZ 457 |
| Type | Chassis |
