CZ 452 / CZ 455 Trigger Spring Upgrade – Improved Trigger Feel & Reduced Pull Weight

Improve the performance and feel of your CZ rimfire rifle with the CZ 452 / CZ 455 Trigger Spring Upgrade. Designed to reduce trigger pull weight and deliver a cleaner, more consistent trigger break, this simple modification is one of the most popular upgrades available for CZ owners.

Compatible with CZ 452, CZ 455, BRNO Model 2, Model 4, and Model 5 rifles, this precision-engineered trigger spring helps transform heavy factory trigger pulls into a lighter, smoother, and more predictable shooting experience.

Many shooters choose a trigger spring upgrade as their first modification because it offers a noticeable improvement in trigger feel without the cost of a complete trigger replacement system. A lighter trigger can improve shot control, reduce shooter-induced movement, and increase confidence whether you’re hunting, target shooting, or competing in precision rimfire disciplines.

Manufactured from premium stainless steel, this trigger spring is designed for long-term durability, corrosion resistance, and reliable performance in demanding field conditions.

Key Features & Benefits

• Compatible with CZ 452, CZ 455, BRNO Model 2, Model 4, and Model 5 rifles
• Reduces factory trigger pull weight from approximately 4lbs to around 1.5lbs*
• Improves trigger feel and consistency
• Cleaner and more predictable trigger break
• Premium stainless steel construction
• Corrosion-resistant and built for long-term reliability
• Straightforward installation in under 30 minutes
• Cost-effective alternative to complete trigger replacement systems
• Reversible modification allowing return to factory configuration
• Australian designed and developed
• Backed by a 100% Lifetime Guarantee

Why Upgrade Your CZ Trigger?

Factory triggers are often configured with heavier pull weights to suit a broad range of users and applications. Installing a lighter trigger spring can significantly improve trigger feel while retaining the factory trigger system and maintaining reliability.

Whether you’re improving a hunting rifle, upgrading a target rifle, or building a precision rimfire setup, a trigger spring upgrade can provide one of the most noticeable improvements to the overall shooting experience.

Compatibility

• CZ 452
• CZ 455
• BRNO Model 2
• BRNO Model 4
• BRNO Model 5

Important Information

Performance May Vary: Trigger pull weight reductions may vary between individual rifles and measurement methods.

Installation: Installation is generally straightforward; however, professional installation is recommended if you are unfamiliar with trigger systems.

Safety: Always ensure your firearm is unloaded and safe before installation. Thoroughly function-test the trigger after installation to confirm safe operation.

Popular CZ Upgrades

Looking to further improve your rifle? Browse our range of CZ 457 Parts, CZ 457 Upgrades, Bottom Metals, and Trigger Spring Kits designed for CZ rimfire rifles.