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The Position7 CZ 457 Aluminum Magwell Kit is a precision-machined replacement for the factory polymer magazine well assembly found on compatible CZ 457 .22 LR rifles.
Manufactured from aerospace-grade 7075 aluminum, the assembly features a machined magwell, integrated ejector insert, and an available extended magazine release lever. Position7 offers configurations for both right-handed and left-handed rifles.
The design incorporates close manufacturing tolerances, reinforced construction, and carefully shaped magazine-contact surfaces. These features are intended to address component fit, magazine engagement, and durability concerns associated with the factory polymer assembly.
Position7 manufactures the magwell and its associated aluminum components from 7075 alloy, a high-strength material commonly used in aerospace and precision-machined mechanical assemblies.
According to Position7, the components are CNC-machined with spark-eroded corners for dimensional precision, followed by bead blasting and anodizing.
The manufacturer identifies deformation, wear, and potential cracking of the original CZ polymer magwell as considerations behind the development of its aluminum design.
The Position7 magwell features carefully machined internal surfaces designed to control magazine fit within the assembly.
The ejector insert incorporates a ramp, while the magwell features pronounced chamfered edges. These geometries are intended to guide magazine engagement within the magazine well.
Position7 describes the assembly as having minimal magazine free play, with magazines designed to engage positively and release under their own weight when the release mechanism is operated.
The ejector insert also performs its primary mechanical function during spent-case ejection.
The full-kit configuration includes an extended magazine release lever manufactured from 7075 aluminum.
The lever has an enlarged external profile compared with the original CZ polymer release.
Position7 also specifies an enhanced magazine release spring intended to maintain positive magazine retention.
Because aftermarket chassis systems may have different magazine-release clearances, the standard extended lever is not compatible with every configuration.
Position7 offers two principal component configurations. Contents depend on the selected product variant.
The manufacturer supplies the full assembly preassembled.
This alternative configuration includes the aluminum magwell and ejector insert without the manufacturer's extended release lever.
Position7 states that the original CZ polymer release lever and spring can be retained with this configuration.
Verify the selected variant and its included components before ordering.
Position7 publishes chassis-specific compatibility guidance for its aluminum magwell assembly.
The manufacturer identifies the following systems as tested:
The manufacturer also identifies compatibility with conventional factory CZ rifle configurations, including LRP, MDT-equipped, American, Varmint, and MTR models, while expressly excluding factory synthetic-stock configurations from its general compatibility claim.
Not every aftermarket chassis or bottom metal assembly accommodates the standard Position7 magwell and extended release lever.
These limitations are important when evaluating the exact combination of chassis, bottom metal, magwell, and release hardware.
Position7 specifies this magwell assembly for CZ 457 rifles chambered in .22 Long Rifle (.22 LR).
The manufacturer does not identify this kit as compatible with .17 HMR or .22 WMR configurations.
Position7 provides detailed documentation covering product configuration, installation, compatibility, and magazine fitment considerations.
Position7 Official CZ 457 Magwell Documentation
Installation and fitting should follow the manufacturer's instructions. Professional gunsmith assistance may be appropriate where component compatibility or function is uncertain.
The full-kit configuration includes a 7075 aluminum magwell, ejector insert, extended magazine release lever, enhanced release spring, stainless steel pivot pin, and Torx fasteners. A separate magwell-and-ejector-only configuration is also available.
The main magwell components are CNC-machined from aerospace-grade 7075 aluminum. The manufacturer specifies bead blasting and anodizing as finishing processes.
No. Position7 specifies this magwell kit for .22 LR applications only. Compatibility with .17 HMR and .22 WMR is not supported by the manufacturer's specifications.
Position7 lists MDT CZ 457 chassis systems among its manufacturer-tested compatible configurations. Individual component variations should still be considered.
Yes. Position7 identifies the KRG Bravo among its tested chassis configurations for the CZ 457 aluminum magwell.
Not without modifications, according to Position7. The manufacturer identifies interference between the L3i bottom metal and its ejector insert geometry. These assemblies should not be described as directly interchangeable.
Yes. Position7 offers separate left-handed and right-handed configurations. The ejector insert must correspond to the rifle's handedness.
Position7 states that the original CZ polymer magazine release lever and spring can be retained with its magwell-and-ejector-only configuration.
Position7 states that its magwell is not compatible with the MPA Vanquish side-release configuration without modifications. The manufacturer separately identifies compatibility using its standard magazine release arrangement.
Pete's Pillars is a US-based manufacturer of precision rifle components and a supplier of products from established precision shooting manufacturers, including Position7.
We publish manufacturer specifications, component information, and chassis compatibility details to help customers evaluate parts for their specific rifle configurations.
Real parts. Made by real people in the USA.
The Position7 CZ 457 Aluminum Magwell Kit is a precision-machined replacement for the factory polymer magazine well assembly found on compatible CZ 457 .22 LR rifles.
Manufactured from aerospace-grade 7075 aluminum, the assembly features a machined magwell, integrated ejector insert, and an available extended magazine release lever. Position7 offers configurations for both right-handed and left-handed rifles.
The design incorporates close manufacturing tolerances, reinforced construction, and carefully shaped magazine-contact surfaces. These features are intended to address component fit, magazine engagement, and durability concerns associated with the factory polymer assembly.
Position7 manufactures the magwell and its associated aluminum components from 7075 alloy, a high-strength material commonly used in aerospace and precision-machined mechanical assemblies.
According to Position7, the components are CNC-machined with spark-eroded corners for dimensional precision, followed by bead blasting and anodizing.
The manufacturer identifies deformation, wear, and potential cracking of the original CZ polymer magwell as considerations behind the development of its aluminum design.
The Position7 magwell features carefully machined internal surfaces designed to control magazine fit within the assembly.
The ejector insert incorporates a ramp, while the magwell features pronounced chamfered edges. These geometries are intended to guide magazine engagement within the magazine well.
Position7 describes the assembly as having minimal magazine free play, with magazines designed to engage positively and release under their own weight when the release mechanism is operated.
The ejector insert also performs its primary mechanical function during spent-case ejection.
The full-kit configuration includes an extended magazine release lever manufactured from 7075 aluminum.
The lever has an enlarged external profile compared with the original CZ polymer release.
Position7 also specifies an enhanced magazine release spring intended to maintain positive magazine retention.
Because aftermarket chassis systems may have different magazine-release clearances, the standard extended lever is not compatible with every configuration.
Position7 offers two principal component configurations. Contents depend on the selected product variant.
The manufacturer supplies the full assembly preassembled.
This alternative configuration includes the aluminum magwell and ejector insert without the manufacturer's extended release lever.
Position7 states that the original CZ polymer release lever and spring can be retained with this configuration.
Verify the selected variant and its included components before ordering.
Position7 publishes chassis-specific compatibility guidance for its aluminum magwell assembly.
The manufacturer identifies the following systems as tested:
The manufacturer also identifies compatibility with conventional factory CZ rifle configurations, including LRP, MDT-equipped, American, Varmint, and MTR models, while expressly excluding factory synthetic-stock configurations from its general compatibility claim.
Not every aftermarket chassis or bottom metal assembly accommodates the standard Position7 magwell and extended release lever.
These limitations are important when evaluating the exact combination of chassis, bottom metal, magwell, and release hardware.
Position7 specifies this magwell assembly for CZ 457 rifles chambered in .22 Long Rifle (.22 LR).
The manufacturer does not identify this kit as compatible with .17 HMR or .22 WMR configurations.
Position7 provides detailed documentation covering product configuration, installation, compatibility, and magazine fitment considerations.
Position7 Official CZ 457 Magwell Documentation
Installation and fitting should follow the manufacturer's instructions. Professional gunsmith assistance may be appropriate where component compatibility or function is uncertain.
The full-kit configuration includes a 7075 aluminum magwell, ejector insert, extended magazine release lever, enhanced release spring, stainless steel pivot pin, and Torx fasteners. A separate magwell-and-ejector-only configuration is also available.
The main magwell components are CNC-machined from aerospace-grade 7075 aluminum. The manufacturer specifies bead blasting and anodizing as finishing processes.
No. Position7 specifies this magwell kit for .22 LR applications only. Compatibility with .17 HMR and .22 WMR is not supported by the manufacturer's specifications.
Position7 lists MDT CZ 457 chassis systems among its manufacturer-tested compatible configurations. Individual component variations should still be considered.
Yes. Position7 identifies the KRG Bravo among its tested chassis configurations for the CZ 457 aluminum magwell.
Not without modifications, according to Position7. The manufacturer identifies interference between the L3i bottom metal and its ejector insert geometry. These assemblies should not be described as directly interchangeable.
Yes. Position7 offers separate left-handed and right-handed configurations. The ejector insert must correspond to the rifle's handedness.
Position7 states that the original CZ polymer magazine release lever and spring can be retained with its magwell-and-ejector-only configuration.
Position7 states that its magwell is not compatible with the MPA Vanquish side-release configuration without modifications. The manufacturer separately identifies compatibility using its standard magazine release arrangement.
Pete's Pillars is a US-based manufacturer of precision rifle components and a supplier of products from established precision shooting manufacturers, including Position7.
We publish manufacturer specifications, component information, and chassis compatibility details to help customers evaluate parts for their specific rifle configurations.
Real parts. Made by real people in the USA.
| Brand | Position7 |
| Gun Platform | CZ 457 |
| Type | Magazine Well |
