Action Enhancement Kit for CZ 75 B (decocker models only)

This Action Enhancement Kit for the CZ 75 B (decocker models only) addresses the pronounced disparity between double-action and single-action trigger pull weights inherent to the factory system. By pairing a redesigned hammer and sear with matched engagement surfaces, the kit reduces the DA-to-SA differential to approximately 2 pounds. The result is a smooth, stack-free double-action stroke and a clean, consistent single-action break—without requiring polishing or stoning of the engagement surfaces.

Compatibility

• CZ 75 B (decocker models only — PCR, P-01, 75 BD, 75 BD Police)
• Does NOT fit safety-model CZ 75 B, SP-01, or 97-series pistols
• Factory firing pin must be retained — do not use extended firing pins

Key Features

• Drop-in replacement — no fitting required
• Matched hammer/sear engagement surfaces eliminate need for hand polishing or stoning
• Carry Mainspring: ~7 lb. DA / ~5 lb. SA
• Competition Mainspring: ~6 lb. DA / ~4.5 lb. SA
• Clean, consistent SA-style break with smooth, stack-free DA stroke
• Reduces DA-to-SA differential to approximately 2 pounds

Install Difficulty: 2/5

Direct drop-in replacement. Requires basic armorer tools: punches, hammer, and slave pins for trigger/hammer pin installation. Moderate familiarity with CZ 75 disassembly recommended. No fitting or sear surface modification required.

Frequently Asked Questions

Will this kit work in my safety-model CZ 75 B?

No. This kit is designed exclusively for decocker-equipped CZ 75 B variants (PCR, P-01, 75 BD). Safety-model frames use a different sear cage geometry and are not compatible.

Why can’t I use an extended firing pin with this kit?

The hammer geometry and engagement surfaces are optimized for factory-length firing pins. Extended pins can create excessive primer indent depth and increase risk of slam-fires with this kit. Use only factory CZ firing pins.

Which mainspring should I choose for everyday carry?

Start with the Carry Mainspring (~7 lb. DA / ~5 lb. SA). It provides reliable primer ignition across all common defensive ammunition types. The Competition Mainspring (~6 lb. DA / ~4.5 lb. SA) may produce light strikes with harder primers and is better suited for range use.

Ships free within the continental U.S. All components are backed by the manufacturer’s warranty against defects in materials and workmanship. If you have questions about compatibility with your specific CZ variant, contact our armorer team before ordering.