CZ USA 457 Series Aftermarket Trigger Pull Spring 12oz PP45712SP

Pete’s Pillars CZ 457 Bolt Action Trigger Spring

Precision starts at the trigger. The Pete’s Pillars CZ 457 Bolt Action Trigger Spring is designed for shooters who are serious about consistency, control, and getting the most out of their CZ 457 platform in competition or the field. A predictable, clean trigger pull allows you to focus on fundamentals and see what your rifle is truly capable of delivering.

This aftermarket trigger spring is engineered to significantly reduce trigger pull weight on CZ 457 series rifles (all variants). Many shooters report reductions approaching 80%, with properly tuned setups achieving 12 oz or less for competition use. Real-world feedback from the rimfire shooting community has been consistently positive, particularly among shooters seeking a lighter, more controllable trigger pull.

Compared to the factory spring rated at 48 lbs/in, this Pete’s Pillars spring is rated at 9.6 lbs/in, offering a substantial change in trigger characteristics when installed and tuned correctly. A solid trigger is the foundation of improved accuracy, and this component represents one important step toward a great trigger system. Final pull weight can vary depending on other trigger components and adjustments—use care when tuning.

Pete’s Pillars has been a trusted name for quality for years, known for producing reliable, well-made components that shooters depend on. This spring is Made in the USA and ships safely and securely.

Important notes:

• This spring is intended only for CZ 457 rifles.

• It does not work with Timney triggers.

• It does not fit CZ 452, 453, or 455 platforms (separate kits are available).

• This is an aftermarket component and is not manufactured by or affiliated with CZ‑USA.

For safety and proper function, installation should be performed by a competent, authorized gunsmith. No installation instructions are included, as safe firearm handling and appropriate tooling knowledge are required.

Key Features

• Designed specifically for CZ 457 bolt action rifles (all variants)
• Can reduce trigger pull to 12 oz or less with proper tuning
• Approximately 80% reduction commonly observed versus factory setup
• 9.6 lbs/in spring rate (OEM spring is approximately 48 lbs/in)
• Positive real-world feedback from rimfire competition shooters
• One component of a complete trigger system; results may vary
• Made in the USA
• Must be installed by a qualified gunsmith
• Aftermarket part; not made by CZ‑USA

If you’re building a precise CZ 457 setup, this Pete’s Pillars trigger spring is a proven choice trusted by shooters who value consistency and quality.