Pillar CZ 452/453/455/457 Extended Bumpy Serrated Magazine Release
The Pete's Pillars PP457MRB Extended Bumpy Magazine Release offers improved accessibility and a positive gripping surface for CZ rimfire rifles. Designed for the CZ 452, 453, 455, and 457 platforms, this extended magazine catch combines precision-machined steel construction with a distinctive serrated face.
Measuring 1.59 inches long, compared with approximately 1.19 inches for the factory release, the PP457MRB provides additional reach when accessing the magazine catch. Its textured surface offers a tactile reference, particularly useful on rifles equipped with aftermarket stocks or precision chassis systems.
Manufactured from solid steel, case hardened for wear resistance, and finished in a rich black-blue appearance, this is a practical upgrade for competitive shooters, hunters, and CZ rimfire enthusiasts.
Extended 1.59" Design
The factory CZ magazine release is compact and can be less convenient to access, particularly when operating the rifle from supported positions or using certain aftermarket stocks.
At 1.59 inches overall length, the Pete's Pillars extended release provides approximately 0.40 inches of additional reach compared with the standard 1.19-inch factory component.
The longer profile provides a more accessible contact point while maintaining the familiar operation of the original CZ magazine catch system.
Bumpy Serrated Grip
The PP457MRB features CNC-machined serrations across the face of the release, creating a distinctive bumpy gripping surface.
The texture provides additional traction and tactile feedback, making the release easier to locate by feel without requiring an excessively large control.
For shooters who prefer a less textured contact surface, we also manufacture the Pillar PP457MRS Extended Smooth Flat Magazine Release, which offers the same 1.59-inch extended length with a smooth face.
Case-Hardened Steel Construction
Unlike lightweight aluminum alternatives, the PP457MRB is CNC machined from solid steel and subsequently case hardened to improve resistance to surface wear.
The release is finished with a traditional blued appearance, complementing the factory black hardware found on CZ rimfire rifles.
The combination of steel construction, hardened contact surfaces, and carefully machined serrations reflects Pete's Pillars' focus on durable, purpose-built replacement components.
CZ Rimfire Rifle Compatibility
The PP457MRB is designed for compatible CZ rimfire rifles, including:
- CZ 452
- CZ 453
- CZ 455
- CZ 457
The extended design is particularly useful for shooters using precision chassis systems, competition stocks, and other configurations where additional magazine release accessibility is desirable.
Compatibility with extensively modified or nonstandard aftermarket magazine well assemblies should be confirmed before ordering. This product is the replacement magazine release catch, not a complete magazine well assembly.
Features & Benefits
- Extended Length: 1.59 inches overall.
- Improved Accessibility: Approximately 0.40 inches longer than the factory release.
- Bumpy Serrated Face: CNC-machined texture for positive contact.
- Solid Steel: Durable precision-machined construction.
- Case Hardened: Improved surface wear resistance.
- Blued Finish: Traditional dark appearance.
- Broad CZ Compatibility: Fits compatible CZ 452, 453, 455, and 457 rifles.
- Made in USA: Manufactured by Pete's Pillars.
Explore Related CZ Magazine Components
Pete's Pillars offers additional magazine release options and CZ rimfire accessories for shooters who want to personalize their rifle or maintain its original operating system.
Complete Your CZ 457 Setup
Pete's Pillars manufactures a wide selection of CZ 457 components and carries precision rifle accessories from established manufacturers, including Area 419 and MDT.
Product Specifications
- Manufacturer: Pete's Pillars
- Part Number: PP457MRB
- Product: Extended Bumpy Serrated Magazine Release Catch
- Compatibility: CZ 452 / 453 / 455 / 457
- Overall Length: 1.59"
- Factory Release Length: Approximately 1.19"
- Material: Steel
- Surface Treatment: Case Hardened
- Finish: Blued
- Grip Surface: CNC-Machined Serrations
- Manufacturing: CNC Machined
- Country of Manufacture: USA
The Pete's Pillars Difference
Pete's Pillars designs and manufactures practical upgrades for rimfire and centerfire rifles, emphasizing durable materials, precision machining, and thoughtful improvements to factory components.
Our CZ magazine releases are available in smooth and serrated configurations, providing different gripping surfaces while maintaining the benefits of an extended steel design.
Real parts. Made by real people in the USA.
