The CZ 457 is one of the most popular bolt‑action rimfire rifles available today, widely chosen for its accuracy, modular design, and customization potential. Its predecessor, the CZ 455, helped establish that reputation and remains a platform many shooters are familiar with. Despite the popularity of these rifles, small replacement parts—especially extractor and ejector springs—can be difficult or inconsistent to obtain directly from the manufacturer. To address this, Pete’s Pillars manufactures this upgraded extractor/ejector spring as an aftermarket solution, providing reliable availability and improved performance.
This Pete’s Pillars–made spring is designed to replace the OEM component with a stronger, more consistent alternative to promote reliable ejection and longer service life. Pete’s Pillars has become known for producing quality, hard‑to‑find components, and also offers a wide range of upgrades for the CZ 457, other popular rimfire platforms, and chassis systems suited for competition, hunting, and recreational shooting.
Manufactured in the USA from black spring steel, this spring features no plating to flake or wear off. A light coat of oil is recommended for corrosion protection. The increased spring strength is intended to deliver more consistent ejection over extended use. Preliminary testing has shown several thousand cycles without failure. As CZ 457 actions can vary, extraction performance may differ between rifles, and user feedback is appreciated.
Compatibility
- Designed primarily for CZ 455 and CZ 457 actions
- Cross-references the current OEM CZ part 5080062201, which replaced an earlier OEM part number
- May also fit CZ 452/453 rifles, though these were not available for testing and fitment is not guaranteed
- References exist for BRNO452‑19 and PN38, but these part numbers are ambiguous and compatibility is uncertain
Installation Notes
- Install by slipping one side of the spring into place, then the other
- Do not over‑spread the spring during installation
- Over‑spreading may permanently damage the spring and may not qualify for return
- Installation should be performed by a qualified gunsmith or competent individual familiar with CZ bolt disassembly
Key Features
- Aftermarket upgraded extractor/ejector spring manufactured by Pete’s Pillars
- Made in the USA
- Stronger replacement for OEM spring
- Black spring steel construction with no plating to fail
- Designed for consistent ejection and extended service life
- Light oil recommended for corrosion protection
- Preliminary testing shows thousands of cycles without failure
- Designed for CZ 455 and CZ 457 actions
- Possible fit for CZ 452/453; other references are ambiguous and not guaranteed
- Pete’s Pillars product—known for quality, hard‑to‑find components, and rimfire upgrades
| Brand | Pete's Pillars |
| Gun Platform | CZ 457 |
| Type | Bolt Parts |