Apex Competition Action Enhancement Kit for CZ Shadow Series Pistols

The Apex Competition Action Enhancement Kit is a direct drop-in replacement for the factory hammer and sear in your CZ Shadow or Shadow 2 series pistol. Designed for shooters who want a serious upgrade in trigger performance without the guesswork, this kit delivers a noticeably smoother double-action pull followed by a crisp, sub-3-pound single-action break. The matched Apex-engineered engagement surfaces on both the hammer and sear give you a clean, consistent single-action feel while eliminating the stack and grit you often get from stock parts. No polishing, no stoning — just install and shoot.

Real-world performance numbers: With the included Medium Mainspring, expect roughly a 6 lb. double-action pull and a 3 lb. single-action pull. Switch to the Light Mainspring, and you’re looking at about 5.5 lb. double-action and 2.75 lb. single-action. That’s a trigger that lets you shoot faster and more accurately, round after round.

Installation and fitment: This kit is designed to be easy to install as a direct replacement for your factory hammer and sear. In most cases, you’ll just swap the parts and go. On some pistols, the thumb safety leg may require minor fitting — a quick pass with a file is all it takes. No special tools or gunsmithing experience needed for the average shooter.

Important safety note: We recommend using only the factory firing pin and factory firing pin return spring with this kit. Using aftermarket firing pins or springs can create safety issues that we cannot support. Stick with the stock parts, and you’re good to go.

What you get:

• Direct replacement hammer and sear for CZ Shadow / Shadow 2 series pistols
• Matched Apex-engineered single-action engagement surfaces — no polishing required
• Clean, stack-free double-action pull
• Sub-3-pound single-action trigger break
• Two mainsprings included (Medium and Light) for adjustable pull weight
• Easy installation with minor thumb safety fitting on some guns

Why this kit works for you: If you’re running a CZ Shadow in competition, training, or just want a better trigger for the range, this kit gives you a measurable improvement in performance without the hassle of sending your gun to a smith or buying expensive aftermarket parts. It’s a straightforward upgrade that cuts trigger weight, cleans up the pull, and keeps your gun reliable with factory internals. At $165, it’s a cost-effective way to get your Shadow shooting the